Toy Story will be awesome. That being said, I really wouldn't care for much/any more Pixar. I listen to these Disney albums for the songs (with lyrics), not the score. The Toy Story seems like only Pixar with enough original songs to justify pressing.
A Bug's Life - One song during credits
Monster's Inc - I'll admit, very good opening score, but only one song during credits (not including "Put that thing back where it came from")
Finding Nemo - No songs except for Mr. Ray's educational singing
The Incredibles - Great score, but no songs at all
Cars - Might be OK, but just a compilation of previously famous songs
Ratatouille - One Song
Wall-E - One full original song and some previously famous songs, might still be OK
Up - No Songs
Cars 2 - Same situation as original i think
Brave - Actually have never seen it yet, so i don't know
Monsters U - One song I think
Inside Out - No songs
I would love if they just grouped all three Toy Story's into a double (or triple) disc set and included all of the series' songs, but i doubt it.