On motivation and GAS
I'm just happy to be able to make music. I play with two bands and do some recording, but perform infrequently. Almost all of our material is original, and most of it is heavily improvisational. In short, it's a blast to play! That's what really motivates me.
I'm also trying to learn some music theory so I can communicate with "real" musicians. (I'm still more likely to call myself a guitarist than a musician.)
Two things pretty much relieved my GAS. First was the "enough is enough" factor. I have a lot more gear now than I can reasonably use. I got to the point where I had to decide between music and gear, if you know what I mean. For a while, I spent way more time comparing amps than I did practicing.
I've been selling some of my less-used pieces for the past year or so. The first to go was a big batch of cheaper stuff that I just dropped at the local used-gear shop and had them cut me a check. I've been selling the more desirable pieces on my own. In fact, I went home from a recent guitar geekfest with one less amp.
My other anti-GAS factor is the fact that I'm really happy with my two main rigs. One of them is my Vibro-King and ES-346. This rig nails the sounds I've had in my head ever since I started learning to play. My second rig is built around a Boogie Mark IV and a couple of time-based effects. This is more complicated and more difficult to dial in, but the added complexity is needed for more modern music where the "color" of my guitar sound is as important as the notes.