When I came back to guitar after a long hiatus to build a career and raise a family I bought a SuperChamp XD. I had Amp-GAS almost immediately. The amp was both farty and flubby on the low strings and too loud. I replaced the speaker with a Weber. Fart and flub were gone, but it was even louder, intolerably loud in fact. The high gain amp models made it louder still. I was fortunate to come across a Mesa Boogie Mark IV while guitar shopping and I liked a lot about it. I didn't need that much power, didn't want to spend more than $2000, and definitely wanted something lighter, but I heard something I liked. Patience is a virtue. I found an Express 5:25 at the model change to the Plus for well under $1000 off the floor. That was the right amp for me. I have plenty of headroom or I can get crunch. I don't use the high gain channels, but I have the two "clean" channels set up for twang and jazz. I think that GAS is driven by not having what you want or need. In my case it was pretty much cured by finding the right amp. Of course nothing cures GAS when it's an obsessive compulsive disorder.