Subject line says it all. How often do you go back and replay the old FF games?

FFI - Only replayed once in 8 years since I originally played it
FFII - Haven't beaten yet (Damn you PS3 Origins incompatibility!)
FFIII - Only played it on DS ~3 months ago. Will probably replay within a year
FFIV - Every 1-2 years
FFV - Every 1-2 years
FFVI - Every 1-1.5 years
FFVII - Every year
FFVIII - NEVER!
FFIX - Every 1-2 years
FFX - Only replayed it once, probably never again
FFXII - Never, keep wanting to give it another spin to try and like it, but always realize how much I don't.