Sorry I f'ed up a little... it's the one in Playa Dorada which is that cheap.
But I did a quick very random search and I found Viva TANGERINE for under $100.oo AI for TWO people at Travelocity:
<table class="rategrid" cellpadding="0" cellspacing="0"><tbody><tr class="ratehead"><th class="ratebest" colspan="2">Room Types</th> <th class="rateday"> Wed
Sep 8</th> <th class="rateday"> Thu
Sep 9</th> <th class="rateday"> Fri
Sep 10</th> <th class="avgrate">
Avg. Nightly Rate*</th> </tr> <tr class="rmopt selected" id="r1opt0"> <td class="radio" rowspan="1"> <input id="r1opt0_roomdesc" value="Superior Room All Inclusive" type="hidden"> <input id="r1opt0_promotext" value="Save 31% per night" type="hidden"> <input id="r1opt0_amounts" value="407.91:281.46|407.91:281.46|:|:|:|:" type="hidden"><input id="r1opt0_room" name="selectedRoom1" value="ALL|126376" onclick="trClassSwitch(this,'selected');setCurrencyCode('USD');HXrr('r1opt0');updateRecap( )" checked="checked" type="radio"> </td> <td class="rmtype" rowspan="1"> <label for="rm1_0_rad"> Superior Room All Inclusive </label> Save 31% per night
</td> <td class="rateprice"> $135.97
$93.82 $0.00</td> <td class="rateprice"> $135.97
$93.82 </td> <td class="rateprice"> $135.97
$93.82 </td> <td class="avgrate" rowspan="1"> $93.82</td></tr> <tr class="rmopt" id="r1opt1"> <td class="radio" rowspan="1"> <input id="r1opt1_roomdesc" value="Superior Room Ocean View All Inclusive" type="hidden"> <input id="r1opt1_promotext" value="" type="hidden"> <input id="r1opt1_amounts" value="423.90|423.90||||" type="hidden"><input id="r1opt1_room" name="selectedRoom1" value="ALL|126380" onclick="trClassSwitch(this,'selected');setCurrencyCode('USD');HXrr('r1opt1');updateRecap( )" type="radio"> </td> <td class="rmtype" rowspan="1"> <label for="rm1_1_rad"> Superior Room Ocean View All Inclusive </label> </td> <td class="rateprice"> $141.30 $0.00</td> <td class="rateprice"> $141.30 </td> <td class="rateprice"> $141.30 </td> <td class="avgrate" rowspan="1"> $141.30</td></tr> <input id="ttlNights" value="3" type="hidden"> </tbody></table> <script type="text/javascript"> jQuery("#formRoomHO .rategrid").ready(function() { jQuery("#formRoomHO .rategrid input[type=radio]:checked").attr("checked",""); jQuery.each(HotelDetails.hotelInfo.selectedHotelInfo.rooms, function(ix, e) { jQuery.each(e.rates, function(ir, r) { if(r.selected) { var key = r.roomAmountKey.replace("_amounts",""); jQuery("#"+key+"_room").attr("checked","checked"); } }); }); }); </script> <script language="javascript" type="text/javascript"> function setCurrencyCode(s_roomCurrencyCode) { var currencyType = document.getElementById('currencyType'); if(s_roomCurrencyCode==null || s_roomCurrencyCode=="" || s_roomCurrencyCode=='USD') { currencyType.value = '$'; } else { currencyType.value = s_roomCurrencyCode; } } function updateRecap( ) { if( $("pkgAveragePerNight")==null ) { return; } if( $("ttlNights") == null ) { return; } var totalLine = $("pkgtotal"); if( totalLine == null ) { totalLine = $("r1_total"); } if( totalLine == null ) { return; } $("pkgAveragePerNight").innerHTML = totalLine.innerHTML; } </script><script language="javascript" type="text/javascript" src="http://i.travelpn.com.edgesuite.net/10.07/js/json2.js"></script>
Review your total price and continue
<!-- Price Info --> <table summary="Itemized package price" cellspacing="0"> <tbody><tr> <th class="prmsg_rate" id="r1_pkgPromo">Save 31% per night</th> </tr><tr> <th colspan="2" class="medium"> Superior Room All Inclusive (2 Adults), 3 Nights</th> <td style="visibility: visible;" class="price strike" id="r1_pretotal_s">$407.91</td> <td class="price prmsg_rate" id="r1_pretotal">$
281.46</td> </tr> <tr> <td colspan="4"><hr>
</td> </tr> <tr class="total" style="background-image: url("http://i.travelocity.com.edgesuite.net/legacy/graphics/rev_panelbg.gif");"> <th> Total: </th> <td class="price"> </td> <td style="visibility: visible;" class="price strike" id="r1_total_s">$407.91</td> <td class="price prmsg_rate" id="r1_total">$
281.46</td> </tr> </tbody></table>
<!-- /pkg_price --> <!-- HotelDetailsMBox --> <script type="text/javascript">mboxCreate( 'hotelDetailsMBox' );</script>
<script src="http://travelocity.tt.omtrdc.net/m2/travelocity/mbox/standard?mboxHost=travel.travelocity.com&mboxSession=1281366618775-679326&mboxPC=1280503866806-320667.13&mboxPage=1281366896538-532177&screenHeight=768&screenWidth=1366&browserWidth=1030&browserHeight=584&browserTimeOffset=-300&colorDepth=24&mboxCount=2&mbox=hotelDetailsMBox&mboxId=0&mboxTime=1281348901189&mboxURL=http%3A%2F%2Ftravel.travelocity.com%2Fhotel%2FHotelDetail.do%3Bjsessionid%3D2127EC2292788DD5C0982950D309A06E.p0255&mboxReferrer=http%3A%2F%2Ftravel.travelocity.com%2Fhotel%2FHotelDetail.do%3FpropertyId%3D40407%26startIndex%3D0%26showMap%3D0%26sortOrder%3DascPOSPicks%26sortAlpha%3D-1%26tab%3Dfeatures%26travelPackageId%3D%26hotelQKey%3D-5660529184481993704%26tsHotelQKey%3D0%26resetReview%3Dtrue%26loclink%3DHOTELLIST1%7CNAT16%26SEQ%3D1281363167216792010%26hotelQKey%3D-5660529184481993704&mboxVersion=39" language="JavaScript"></script> <!-- /HotelDetailsMBox --><!--disclaimer-->
Note: Unless otherwise noted, the rates shown above do not include (if applicable)
Extra Person Fees,
Child Fees,
Additional Mandatory Hotel
NOTE: The $407.91 actually is stricken thru on the web result to suggest a discount. $281.46 is the best offer I found in a QUICK RANDOMLY picked date. Still UNDER $100.oo/night for TWO, slept, boozed up and overfed

.
Again: Next booking step:
<table summary="Itemized package price" cellspacing="0"><tbody><tr><th scope="row" class="medium">Hotel - 1 Room, 3 Nights</th> <td class="price">$281.46</td> <td class="price"> </td> </tr> <tr> <td colspan="3"> <hr>
</td> </tr> <tr class="total"> <th>Total:</th> <td class="price">$281.46</td> </tr> <tr> <td colspan="3"> <hr>
</td> </tr> </tbody></table>
<!-- /ftnote --> <!-- /pkg_price -->
I check in and out of hotels around here like pop artist do in rehab centers. It's quite some tedious WORK to find the BEST rates. I Santo Domingo, I never seem to find the SAME hotel... I either stay at the Melia, the Jaragua or the B-Lina.... always below $100.oo a night. But EVERY TIME I got to work ALL the online travel sites... although lately, TraveloCity seems to work well for me.
... J-D.