Short films soundtrack, why not?

I know there’s an old short films CD soundtrack thread, but I didn’t want to bring up a dead one.
Why have we never gotten a short films soundtrack? CDs for every movie but no short films music CD? Why not?

I definitely want them to make one! Pixar’s scores are always awesome, even the shorts! Some of my fave scores or songs in the shorts are in Lifted and Knick Knack. I know, quite a set of diverse choices there. I don’t know why that haven’t done one yet… perhaps when they release the 2nd volume of Pixar Shorts they’ll make a soundtrack, and hopefully a physical CD version.

For the Birds original soundtrack was released on CD. It’s on the cd of songs inspired by Monsters, Inc.