Are you a travel planner or a travel doer?

If the former, it's very important to spend a lot of time thinking about what type of bar tape you need, and once you've decided on the type, you need to spend at least as much time thinking about what colour to get.

If the latter, then you go with whatever bar tape you already have, or whichever one your local bike shop has for about 10 bucks, preferably black.

Honestly, you people read too much about cycling as opposed to just doing it. Get yourself some gloves, though. That you will need. Oh, oh! Better put off that touring trip for another year... there are many gloves to choose from.

I've never toured in Mexico, but I think that if I did, I wouldn't spend too much time making my bike look nice.