I am a FANATICAL book collector, or, as a friend of mine likes to describe ourselves as being, a bibliopath. Burgess Meredith in "Time Enough At Last"? That's me, only with a moustache. And the main reason I keep them is that I CAN'T stop reading them; there are some books I just read over and over again, till they quite literaly fall apart. The pitfall of this is that there are books I buy, but which I wind up never getting to, because of work and other interests. And then there's the fact I keep lending to them friends and family, and keep forgetting to ask them back.