I've thought about it on and off. I had one for a little while, but sort of got roped into following mutual friends and people I knew and then my timeline would get spammed with annoying stuff. I'd get annoyed or angry about it, then get annoyed at myself for getting annoyed, and it was sort of a toxic cycle.
Most the people I want to follow to keep up with their art or music barely post, so I really can't find a reason to justify getting one. If they were more active, maybe I'd consider, but I'm lucky to get a tweet out of them once every 4 months.