Cd's that gather dust- Why and how many?

I was a big fan of all those californian punk rock bands that were big
in the mid-90s like The Offspring, No Use For A Name etc. I made a
best-of on one or two CD-Rs and sold the originals.
 
Luckily I got these pretty cheap

Van Halen - Van Halen III (hails to Van Halen and all, but this one sucked)
Skid Row - Beside ourselves
Status Quo - compilation of some sorts (I don't even care)

Hm, I think I'm going to try to sell these. Anybody know a good site for selling CD's?

Oh and to the guy who said he didn't like those Opeth, Darkthrone and Emperor albums; dude, you seriously need to give those bands a chance. Greatest music ever made ;-)