I didn't see your original post, what did you "buy" with your caps? I just spent a bunch of mine (1400) on a Nike gift card. We have a Nike Factory Outlet store a mile from my house and I'm buying my DS some new shoes for school. I spent some of the remaining points on a Walgreens photo card ($5) towards my post-trip photos...sure wish they would let you get more than one card, I would have put the entire balance on that!
There is a pizza shop beside my workplace, they let me take the caps.