My question is, where do people buy epubs for these? Are you buying them off of Kindle or similar and stripping the DRM? My biggest withholding is that I can get used paper books for quite cheep (ie, from thriftbooks or similar), but there's not really a similar marketplace for digital versions (understandably so). Maybe I'm just cheap, but I have a hard time justifying near-full-price for books that I can get the physical version for much cheaper, or I already have sitting on my shelf at home.

Any thoughts?