Damn, guess I was the only one who grew up on the wrong side of the tracks. Paid my way through 5 universities while married, raising kids and buying a house. There was nothing left over for photography gear but I managed to start out with a Nikon FM (after a brief time with a Minolta system) and a 50mm lens, flash and case. That was it.
Never knew many people who bought more than that...and they were wealthy real estate developer clients. Even my mentor at Georgia Tech was a devout Nikon FM+motordrive+flashes+lenses all in a nice Zero Halliburton case. But, even with his lifestyle, he never owned but one camera body at a time.
So, for me, GAS is a relatively late phenomenon only coming into being with the internet and millions??? of cheap film cameras that can be bought for a tiny fraction of original values. Then, there are those who are making a lot of money these days, and buying is difficult to control with so many things available in the photographic world.
Still, though, it is difficult to shoot more than one camera and lens at the same time...😛