I meet both of you BearNVa and you look healthy, the two of you should go ahead and make the trip and stay for a while there, have a good time, lots of walking around but you can do that, at least go once and enjoy something different. Next year you may not want to go, but once would be a treat. I am sure there will be plenty of English speaking people there that you can make friends with besides the locals.
Don't shy away from a life time experience, park somewhere around Condado area and take a taxi or bus the rest of the way.
If you can find it, try the Mavi, I used to drink it when I was a kid: http://www.ricanrecipes.com/recipes/det … &id=49 (Site also has a lot of other nice recipes)
Since it is the holidays try some "Tembleque" and "Arroz con Dulce" for desert after the fritters at the party.
Be adventurous