I have pretty much been a GAS man my whole life, on and off... first keyboards, then computer/VST software, and now guitar and bass gear... It's pretty natural, all part of our hunter/gatherer mindset!
I think the thing I've really been after, though, is not the gear itself but just the knowledge of how to get various different sounds. I hope I'm at a point where most of those mysteries are cleared up, and I will be happier with a small amount of gear (the fact that so much is possible on computers now helps - not that I have a lot of software any more, but it's only a click away if I do want it!)
Everyone needs a quest and once you are over that line where you basically know what your sound(s) is/are and have the gear to make them, it's time for another quest. Get obsessed with technique, songwriting, learning to sing while playing....
I think it obsessions are only mega unhealthy when you get focused on one thing so much that you step over the line of diminishing returns and you are disappearing up your own backside pursuing something that you basically already have.
Ultimately, always just ask yourself: Does this help me with the ladies? (Which is the point of hunting/gathering in the first place)