...I have 5126 songs...
Peanuts. My music collection currently stands at some 14'000 tracks. My ex-music teacher's is at nearly 20'000. And people have more. Lots more.
Muse
Iron Maiden
Michael Brecker
Pat Metheny
John Williams
Jon Gomm
Steve Vai
Danny Elfman
Wolfgang Amadeus Mozart
My girlfriend would ask you if you've listened to each of them at least once. At least, that's what she asks me.
There are still some bands that I know about but purposefully haven't listened to. One example that comes to mind is Trivium... haven't touched em but I know they're good. Once you listen once, it'll never be the same ever again.
But wow even if I downloaded everything I want, I don't know if I'd hit 14,000. That's an impressive number from my standpoint. Someday I aspire to be more musically savvy than I am now... but then you'll have improved as well... hmm quite the predicament.
Marty shall always be the superior guitar hero =]