My GAS tendencies used to be way worse. Like, at one point I was buying a pedal every other week, and I was flipping amps constantly, then coming back to them realizing that I should never have sold them.
Amp-wise, I'm in a great place. I have a bunch and I dig them all. No reason to sell any of them in all honesty. I got the Mark V recently, and no doubt next year I'll get another amp.
Modeller-wise, I'm not really that arsed. I have Helix, I have Axe3, I have Quad Cortex. I use them, but lately it has been sparingly. Why do I need three top tier modellers? I don't. I barely need one to be honest! But I have them all the same. Will I keep them all? I don't know man, I don't know. The Axe3 is pissing me off philosophically at the moment, coz I know it can do EVERYTHING.... but I just don't like using it as much as a real amp and a few stompos. I'm sure the feeling will pass. I'm not gonna sell it. More likely to sell the Helix or the QC.
Pedals, I actually don't have that many, compared to even a year or two ago. I think I had something like 30 odd pedals at one point. Now I've got about 10.
Guitars are actually not something I hugely GAS for, being a lefty. I've got two Les Paul's - the ObG and the Tokai - and a Stingray bass, and a Gibson acoustic. Kinda does the job for me really. I got rid of the strat and the Evertune EC to get the Mark V. Don't regret it one bit!
I dunno.. it comes and goes, and I've never really been that bothered by it. What the hell else am I supposed to spend money on?? The kids??? Sod that!!
Next year will probably be expanding my pedal collection. But not because I feel I NEED anything. I really don't need anything else to be able to make music; and I do still make music, despite TNBD being wrapped up.
I've got my solo project called Sloganyear and then two bands; Summerisle, and 'Ash City' (WIP name!) - those are going to keep me busy next year and hopefully I'll get some music released!