I had GAS when I came to RFF close to three years ago... I had bought -and thought it was going to be the only one- my first RF lens: the CV 15 in M mount, and the reason for getting it is that there was (is) nothing like it in the whole world... And I got another unique piece for it: the R4M.
Then I felt real GAS, and wanted to feel the experience behind close to 10 cameras and 10 lenses... I experienced what other photographers felt with old cameras... I know for sure they are different and very interesting, and their ways make us think differently and make richer our perception of light and photography, so I feel great about having felt GAS... On last year GAS disappeared, though... I don't want any camera or lens...
Cheers,
Juan