Amazon should take a cue from Steam and run limited-time specials on Kindle ebooks and send me email when books on my wish list go on sale. I'd end up buying more books, I'm sure, just the way I've bought a lot of games from Steam that I don't have time to play.
Mokalus of Borg
PS - Perhaps their publisher agreements don't allow that.
PPS - Which is the equivalent of "we don't like money", but that's their loss.