During this time, I have thought about GAS, and what has made me GAS. I have worked up a list of GAS factors for me, YMMV.
1. Buying stuff is easier than practicing!
2. Boredom
3.Falling in love with a great sound from a recording or a performance.
4. Listening too much to others instead of trusting my experience (this is why I got rid of some nice 17mm spaced basses like Millenniums.)
5. Wanting to get the "hot" bass.
6. Impatience, instead of saving, I have traded or sold a great bass to get something new.
7. Buying a "good" bass because of the price although it's not what I really want. This sets up future GAS, trades, swaps, or sales.
While I do admit that there can be a LOT of wrong reasons for GAS, like say believing the marketing hype that getting a bass just like Joe Blow has, that then you'll play just like Joe. Or being influenced by the opinion of others instead of your own muse. Or duplicating the function of basses without carefully thinking about WHY you are buying the new gear.
GAS is GOOD!
1. GAS is easier (and more fun) than practicing. Sure bass playing MUST be about the music, but if it were ALL about the music then you wouldn't need a bass at all. Just a ream of staff paper and a box of pens. Go at it and be creative. But then Music isn't ONLY about gear either. The public is really impressed with a great player, but unless your gear is theater (row of washers and dryers) all instruments and gear look the same to the public.
2. Boredom. This is a BAD thing. It's drummer in a rut. It's writer's block. It's musical stagnation. You've GOT to shake yourself out of it. And one trick that often works is to radically change your instrument. Stuck in that 4 string rut? Go get a 7 string or a fretless. Stuck in 5 or 6 string active bass rut? Go get a passive 4 string P-bass. GAS will help you through this crisis.
3. Falling in love with a new sound. This is NOT bad. Art is never standing still. There are ALWAYS new things to try. Some may not appeal to you. Some will. But let's face it. The ONLY way you can work out YOUR "take" on the "new" sound is to get the gear that makes it and live with it until YOU "get it" too. Yup. GAS again.
4. Influences. All artists are influenced by other artists. Whether it's stealing licks and tricks or buying a green bass because "everyone" is into green right now. If you substitute the judgment of others for your own, that is bad. But you do need to understand that it is this "influence" thing that creates whole movements and styles of art (music). One guy does something cool, and other loves it and does their own take on it which gets more people trying their version of the same idea and next thing you know "jazz" or "funk" or whatever is born. Same thing goes for styles of gear. GAS is just a reflection of that.
5. Wanting the "hot" bass can be a waste or it can keep you "current". Music is many things and "show business" is one of them. According to your "act", look, dress, and style can have a varying degree of importance. The currently "hot" bass could be a part of that. The trick is deciding what part is fad, what part is show, and what part gets down to the essence of what you are trying to do. Pick the wrong one and your GAS is wasted.
6. The one thing you never want to do is to get rid of a great bass unless you are TRULY sure you are through with that style of instrument FOREVER! Doing so on a lark or fad just puts footprints from your own shoes on your own butt! Great basses are MUCH too hard to find to dump them without VERY good reasons.
and lastly 7. I never worry about a bass that is reasonably good and WAY under priced. Even if there are no proper reasons to buy it. This is not a GAS question at all. It's a BUSINESS question. If you can sell that bass later at a profit, you don't need any more justification. And you need to buy it then because "Ya snooze, Ya lose!" You are not the ONLY "smart" person on the planet who understands that this bass is a great deal with potential profit. If you don't BUY RIGHT THEN, tomorrow or even in a couple of hours, one of those "other" smart people will be along and your deal is over. The bass will be gone. Trust me. Just buy the bass, learn as much as you can from it, sell it, put the profit in your GAS fund. Don't look back on that one.