When I joined APUG about 10 years ago, I snickered at the folks who had GAS. I had only one 35mm camera and a 6x6 twin lens then. Now I have 12 35mm cameras including 1 Canon... and I'm eyeing another. I went from zero Canon lenses a month ago to 3 today. And then there are the Nikons.
GAS, who me? Yes.
On the bright side, I sold 3 consumer Nikon bodies (EL2, FT3, EL2) for 1 Canon lens. And then gave my daughter in law a Nikon and lens. I'm finally learning.