Hidalgo,
I have been apposed to the Metro from the beginning and will continue to be apposed to it. In my particular situation it doesn't solve anything. I live on the other side of the city and I'd need to take two buses to catch the Metro and then take the Metro, so where is the efficiency? I've always said that the money would have been better spent on revamping the public transport system. I am not alone in my feelings. Yes you need to make moves like these to progress, but I am not sure that in these tough times the Metro is the answer.
As per prices of gas I concerned as to what it will do to the economy. I mean I have money for a car, and money to pay the gas and etc so I am complaining to complain, to a degree. But what about those who have cars and must pay for their gasoline and don't make as much as I do, where gasoline is a larger percentage of their budget? Its going to hurt in the pockets. Summer will tough this year. Like I said, learn your bus routes and learn how to effectively take the bus to maximize your comfort. After riding the bus for so long I've learned a few tricks on how to make the guagua experience bearable, if possible.
One final thing I will say this, for as much as people think the Metro will be a big success, I hope it is, but I just don't for see it.