You have a tiny collection. I believe I have a small collection, especially with Apples Digital Download dreams.
I have a small 30GB music (3225 songs), 371GB movie (225 movies), 224GB TV (125 shows), 18GB Audiobooks (about 73), plus iTunes U stuff, and Podcasts.
It crashes constantly, it has constant beachballs (in 2011??), and as others have said, plus the funny window behaviour, and button layout