Microsoft announced on their Twitter account, that they will open one of their retail stores in Plaza las Americas in San Juan, Puerto Rico.
If you want to buy a PC, this is going to be a great option. At their stores, Microsoft sells only Signature PCs. What this means, is that those PCs will not have any other software installed (crapware). You can go to their page and take a look. There are also rumors of an Apple Store coming to San Juan, but in typical Apple fashion, nothing is confirmed. We can only hope.