I heart the Kindle and similar devices, but ye hairy gods electronic books are overpriced. I understand why new releases are expensive, but I can buy a copy of (to pick an arbitrary example) Catch-22 at any used bookshop for $0.50; why I do I need to pay Amazon $13?
My usual solution to this problem is to buy things in some legal way and then go and get the pirated version anyways for the added convenience (lack of DRM on music, lack of unskippable previews on movies, having all my DS games easily available, etc.). However, that won’t work with books if my goal is also to reduce space consumption. :-\