I've toured in Mexico, Costa Rica, SE Asia, and a few countries in S. America. The Yucatan of Mexico is an easy place to tour. My friend & I flew into Merida which is a pleasant city. The Pu'uc Hills south of Merida were my favorite part of the Yucatan. The Caribbean coast has heavy traffic (though the main road had a decent paved shoulder), tons of tourists, and much higher prices. It's easy to hop on a bus with your bike in Mexico. We weren't camping. Hotel prices are pretty reasonable away from beach resorts in Mexico. The food is fantastic.

Costa Rica is a nice country to visit but I didn't think the touring was that great. The 2 main reasons were many of the paved roads were in very bad condition, and except for the Pacific coast, it has extremely mountainous terrain (and I usually don't shy away from mountains).

I'm hoping to tour in the zona cafetera in Colombia this winter. From what I've been able to gather, it's perhaps the best region in Colombia for touring. I was in Bogota and the area north of there a few years ago. It was very nice but not a good region for touring (I did a bit of biking but wasn't really touring there). The road network in that region is fairly limited and it's extremely mountainous.

Hawaii is another possibility. It's pretty affordable if you're camping. You need to have permits to camp in the state and county parks. I liked touring on Kauai, Maui, & the Big Island.

For just 2 weeks, it's probably not worth flying to Chile, SE Asia, NZ, Australia, or other places far away, but if you're willing, northern Thailand and northern Laos have great touring and near perfect weather from Dec to Feb. Fly into Chiang Mai, if possible, though you can fly into Bangkok and take the train with your bikes to either Chiang Mai area or Vientiane, Laos. Don't bother with camping gear. Guesthouses are cheap and excellent in Thailand. Food is cheap and delicious.