Gardener's Syndrom, a constant desire to trim and improve (mods), can be as bad as GAS.
GAS syndrome...
My pal who acquires and parts with fine guitars with alacrity pointed out this link to me and I think it is similarly descriptive of myself with audio gear, although I am sort of getting a handle on it. At least that is what I tell myself. The first step to ending a compulsive behavior is an awareness of it. :-) http://www.musicradar.com/news/guitars/7-stages-of-gear-acquisition-syndrome-585947