Remember folks, it's now a bad term and you really shouldn't use it anymore, because it insults all authors who are published in print form and that is bad. This is a public service announcement from me, in case you didn't read the Dear Author thread about how Chicken Little destroyed the publishing industry (seriously, Jane's article and some of the comments are worth reading... at least until Nora Roberts showed up and the whole thing took a detour into semantics and "Are you insulting me? I think you are!" territory). So yeah, remember, "dead tree books" = BAD.
PS: Emily Veinglory pointed this out, and now that I have read the whole thing, I agree: the whole "Ellora's Cave Sues Border!" comment thread is worth a read because there are some interesting stories coming out about Ellora's Cave print program. Not that I am gleeful or anything, mind you. It's just that I've heard that Ellora's Cave print books had disappeared from many bookstores recently, and these stories explain what could have caused the distribution to go under. If these stories are true, it's another cautionary tale about the dangers of not preparing (financially) in advance to deal with bookstore returns. The whole issue of bookstore returns is dealt with in the other thread in DA that I linked above, so spare yourself an hour or two this weekend to read those two threads.