A few weeks ago I was in Merida, Yucatan and made the drive to Chichin Itza and Valladolid and then to the coast south of Cancun down toward Sian Ka'an Biosphere Reserve. I can tell you the coastal road (more or less a freeway with too-frequent topas that will rip the undercarriage out from under your car if going too fast) was loaded with BMWs, Mercedes, Lexus and other high end car being driven by the locals; the tourist were in the obvious lower-end rental cars (the one I was given by an ex-pat friend was probable illegal to drive even in Mexico
). The Playa del Carmen area reeks of money.
Yes, the area has been historically very isolated from the rest of Mexico, and they laugh at the notion of violence in Yucatan. In Merida, one can walk more-or-less carefree down dark allies that would have the hair on the back of your neck standing up in most cities in the US. Mexico is a big place; most of the folks there are a little wiser about things than here and see the drug-GUN problem as a BORDER problem WITH the US.
On a purchasing power basis, Mexico is 10th or 11th in the world. On a proportional basis, they put in place a much stronger stimulus than the US in response to the Great Recession; they’re benefiting from that greater wisdom now.
Some interesting things to know - Merida was the home to the sisal rope production starting at the dawn of the industrial revolution but ended with nylon rope substitution during WW2. During that time, there were years where Merida was on a per capita basis the richest city in the world. There are huge city homes built by the elites (on the backs of the indigenous Mayans - basically somewhere been slaves and indentured servants) and enormous haciendas of the sisal plant - many of them still there ranging from ruins to completely restored locations operating at a smaller level as tourist attractions.
Merida is also in the bulls eye of the asteroid or comet that hit the earth and one theory is it wiped out the dinosaurs. The impact lifted much of what is the Yucatan out of the Gulf waters and fractured the limestone into thousands of cenotes and underground rivers. Chichin Itza was a god-forsaken place landscape with little ability to sustain human population but it had many cenotes that the Mayans considered as gateways to the underworld where their chief water god resided. It was built as a Mecca-like pilgrimage religious city for the Mayans.
I highly recommend a day for those of you in pretty good physical shape and monetary shape (it is expensive) to spend a day at a place called Xplor which is just south of Playa del Carmen. It has way more zip lines than I like to do (my 10 year old made me), but the underground river circuits (2 by swimming and 2 by specially made hand-paddling wooden rafts) that each go a couple kilometers is truly an 8th wonder of the world. I've been in a lot of caves; nothing compares to this - and pretty much taken for granted by the Mexicans to give you a clue how much fractured limestone there is in the Yucatan. Take a look at Google Map's satellite image of the Yucatan; all those little dots are cenotes (looks like Swiss cheese) – and that's just openings that you can see above ground. Really an amazing place.