Doc, I'll pass along my experience about GAS:
I'd owned roughly 20 basses over the years, then I came upon the two Alembic five-strings I owned. I found one used on consignment, the second I later had built for me by Alembic. I used to be AT LEAST as big a nut about basses as you are.
After I acquired the two of them GAS went away as if surgically removed. I'd start to go into a music store to 'look around', and then I'd think 'why ?' Just what the hell was I going to see in there better than what I had . . . It's just hard to look at little digital pianos when there's a 9-foot Yamaha CFX or Bosendorfer back at the house.
So in the intervening years I owned them (about 12 years for the first, about five for the custom), I quit gigging, remarried, acquired other interests, and would play them around the house. I'd sold three Yamaha BB5000's while I owned those two, they were nice, but not in the same league as the Alembics, understandably.
My wife had unsuccessful back surgery, became disabled, and we suddenly lost her income. I'd bought the Alembics right, sold them for what I paid for them, and paid my mortgage for 6 months with them. It was a no-brainer, they both found good homes, and I don't really miss them. I'm quite sure I'll never own anything like them again, but for a time, I owned totally unique, 1 of 1 basses, the best there is, and I enjoyed their time with me. Ultimately, I could get other basses, but my wife is also a 1 of 1, and she comes first, so no regrets.
We've gotten over the hump, things are better, and I bought a couple Squiers. I enjoy playing them, and of course, while they're great little axes, they . . . ain't . . . Alembics, but I've said all THAT to say THIS:
It's the playing that matters. What I'm playing, whether it was $500 or $5000, it still sounds like me, and I've been around long enough to make most anything work for me.
And . . . . . I still don't have (nor ever again expect to get) GAS.