Upload & Sell: On
It's cheaper than motorcycles. At least that's what I tell my wife, and she doesn't seem to mind...
To say nothing of the fact that I've never heard of a Canon giving one "road rash." Says the man who still has the scars.
For me a camera (and associated gear) is a tool. I make a significant part of my living with these tools and many of the things I've purchased (and sometimes sold on) were attempts to solve a problem or get the shot. Obviously some tools get used more often. In PJ work the 24-70 is the most used lens while in sports it's generally the 70-200 f/2.8. OTOH I have a set of 3 primes that were selected via trial and error to photograph indoor winter sports in utterly dismal gyms. I wouldn't have bought a 35mm f/1.4L or the wonderful 85mm f/1.8 otherwise. (The 135mm f/2.0L is something I refuse to give up because of its inherent beauty.)
Did I need a 24mm TSE f/3.5 II? No, probably not, but I was drawn to the challenge of looking at things in a different way and wanted to extend my landscape work in new directions. Can't say the TSE has made me much money, but the on-going learning process is rewarding.
It's easy to not suffer from GAS. Just limit oneself to a single lens for a period of time and see how creative you can be. I do this regularly (away from sports/PJ work) simply to force myself to "see" in a different way. It also often points out to me why I have other lenses. I'm fascinated with the MP-E. The work people do with this lens is incredible and can't be done with any other tool. I haven't bought one in part because there is only so much "non-money making gear" I can justify and part because I'm still absorbed in the TSE.
Would I get a 1Dx if I could fund it? In a New York minute! I desperately need another 2 stops of useable light and full frame would really add potential. I'll get one at some point, but only when the used price drops into my price range as virtually all my gear has always been purchased used.
For those for whom photography is a hobby? Well hobbies don't really make sense anyway: collecting stamps, old toys, etc., playing fantasy any sport, riding a bike or motorcycle just cause you want to, the list is near endless. Assuming your children aren't starving just because you bought the latest 1D75xxx, how is this different than any other non-employment activity that probably everyone on this forum can do precisely because they aren't struggling to provide at subsistence level? One could argue that we should all be more Christian (Buddhist, Islamic, Jewish, Pagan, etc.) by putting excess income into caring for those with less, and I strongly believe (and practice) that we all owe the community, however defined, some measure of service and commitment.
Balancing that is - at least for me - some driving force that makes me want to be more aware, to see the light anew, to find the moment when all is in balance, to hold time and space for just that utter instant. I think the time one spends looking thru the viewfinder is like what the great Izaak Walton said of fishing, "Time spent fishing is not deducted from a man's allotted life span."