Can you give some examples of comparable hotels which are going for sub $100? Mexico is full to the brim with US tourists as well as being a domestic center in its own right. Unless I'm missing something, the Hyatt Regency is pretty much at the bottom of its price range in its class. If you want to go any nicer (e.g. St Regis, RC, Las Alcobas), you're usually looking at over $600 plus taxes (so $700+).