I'm moving house this week, and though it initially pained me to do it I got rid of 150+ cds...
When I started it was hard, deliberating over whether or not to get rid of stuff like the 'save tonight' single by eagle eye cherry, but by the end I was happily chucking all sorts of crap out.
It was odd though, as I had cds by the following:
elevator suite (?)
alien ant farm (?)
None of which I have any recollection of buying.
Anyway, very theraputic.