I bought a Gamecube purely for FFCC, it's still the only game I have for it.
I bought a PSP for Valkyrie Profile about 2 years ago I think, and now FFVII:CC is coming up.
I bought a DS for Chocobo Tales, FFXII:RW and FFCC:RoF.
I bought a Gameboy Advance back in the day for FF:TA.
I'm definitely buying a ps3 the moment FFXIII is released, and I'm buying a WII for the CC title coming up, at least their nice and cheap.

It's all a matter of whether or not you have a job to pay for them if your as obsessed as some of us .