I haven't really counted in a while, but last I remeraber, I've got about 1,500 CD's… So needless to say, I have a lot of stuff that I don't listen to all that much anymore.
It's gotten to the point now where I let my 4 year-old or 16 month-old randomly pick out any CD from Daddy's collection, and whatever it is, we listen to it. (Surprisingly, they usually pick out some really good sh*t!)