I reformat alot, so all of my songs are constantly just being deleted. I don't really have the time to accumulate a library of it, so I just have what I listen to now because it's only going to be wiped with a reformat shortly.
At any time I only have about 200 songs or less.
I am a game junkie though, owning around 40+ games digitally, and 600+ physically.
Not really as much of a movie junkie though, digitally owning about 104 at the moment.