Yes it is crazy.
But then again, in Puerto Plata, along the Malecon, "they" are asking $300+/m2. Haven't sold much thou. I know that's no way near what "Sirena" paid, even thou some sellers will swear to know otherwise.
Then again, it has been my experience that prime land and real estate in main cities of 3rd world countries do command 1st world city prices. Almost 20 years ago, I knew people renting pent houses in Guayaquil (EC) for over US$4000.oo/month. That even seemed almost "fair" even when they often didn't get water pressure up in those apartments, when Lima in these years listed as one of the worlds most expensive cities, for some reasons beyond my comprehension.
Effectively, commercial land can only be worth what it can produce. One has to wonder then, what the heck super commerce or industry they have around there.
SD "Polygono" sector has seen some unprecedented "interest". Some new apartment towers offering homes close around the million USD with maintenance fees often in between US$ 600 and a 1000 or even more! You have to wonder, who is making the money to afford an apartment in these prices and still wanting to stay in a 3rd world city with all the security issues and shaky infrastructure.
I am currently in Florida for another week. Miami is FULL of Brazilians. More or less rich ones. Know what they do? They just ENJOY taking a walk along A1A (the beach road) feeling safe. Coming from Rio or SP where they have to bring their kids to school with a body guard escort, who can blame them really. No comparing to SD implied, which is still quite peaceful but... you get the picture.
Short, just like with big plasma TV's and the sort of luxury stuff, a nice, relatively secure and productive spot, in a 3rd world country it's a luxury, supplies are limited so prices are at times beyond comparison and often even the logic of numbers.
... J-D.