It's a big problem for photographers too. Especially with the rapid progress of mirrorless cameras there is always the next camera or lens you need to get. I have bought lenses and never used them. I have also spent more time on looking for accessories for my 3D printer than actually using it. Not sure how to combat GAS. I feel for people with a full time job it somehow compensates for the lack of time working on one…
I'm probably not explaining it as well as I might, but I am happy nonetheless to say I've found my GAS very reliably cured by BeAN-O.