Yeah, my degree is in Music Theory/Composition, and while I understand where people are coming from when they complain about music notation, I can't see myself investing any significant amount of time learning an alternative system when I already have the current system down well enough that I can sight-read and sight-sing a vast majority of music.

tl;dr I'm not giving up the ability to look at an orchestral score and have a pretty good idea of how it sounds just to learn that skill all over again.