After researching the differences between Kindles and Nooks, I bought a Kindle. Got it straight from Amazon as local stores didn't have the version with global reception. I look at it this way: I go through maybe six books a week--tossing aside three after 80 pages, reading three totally. I pay $2.50 each for those books at a second-hand paperback store. Assuming I buy cheap books on Kindle (I look for genre classics, not new bestsellers), I could hypothetically recoup the price of my Kindle in six months.
And actually, that isn't why I bought the Kindle. I bought it simply because I wanted to experience the new technology. A nice afterthought is that I could promote my friends' ebooks by reviewing them.