I just hit 5000 songs in my iTunes library.
That's not counting over 100 CDs I never got around to ripping and 150+ cassettes (mostly Sisters of Mercy live bootlegs) and 100 or so vinyl albums and some audio books (I only own 2, actually. Jon Stewart's "America the audiobook" and PKD's "Do Androids Dream of electric Sheep?")
Anyway, here is my entire library. It's slow to render (duh). Use the page down keys instead of scrolling. It's faster.
So, how much music do you folks have?