GAS is just GAS it's more about wants than needs.
It speaks more about yearning, to be a better player, or we just love toys.
I have 3 vintage Guild dreads because they were too good a deal, or investments, whatever the reason I now have three but my original (1973) sounds the best by far. It's got a range of bass and treble that just right on the money everytime.
By comparison the '71 is bassy, has higher action, I have it in open D, but I really never play it, didn't need it, should sell it.
The '73 D25 hog to flat back strikes me as thin and trebly when I first pick it up after the '73 D35, but if that one wasn't around, the D25 actually sounds really wonderful, it would be fine as your only guitar.
So in the end, my original dread beats out the two I got later. It took me about a year to figure this out, because everytime you get a new guitar, you're hoping maybe it's better than the one you already have, and that taints your hearing. After playing all for a while and losing the expectations of a new purchase, the trying to justify the purchase because of some exquisite tone you really want to hear, after all that has faded away and reality set back in, only then can you accurately compare old vs new for very similar models, like a pile of 70's dreads.
Even my F30 for all of it's really completely different sound doesn't do it for me like that '73 D35 can. What I learned here ($2500 lesson) is that my original D35 was a damn good one, and I didn't really need to buy any other guitars after that, but how else would I know that if I hadn't bought all those other guitars?
GAS is just GAS is sometimes it doesn't have a lot to do with actually playing a guitar.