I'll have much more to say later, I'm sure.
Later: After a few hours of agonizing, I decided to get the Sony Pocket e-reader. I like the Sony I have, and all the reviews I've read said that the Pocket one is a totally stripped down e-reader, but just fine for reading. I'm used to using the USB cord and just dragging and dropping books onto the e-reader as it is. That won't change. It will be good to have a backup, considering I keep dropping the Daily Edition, and the Pocket edition is lighter than that and will fit in my purse.