I have had my gold Futur for over 3 months and it shows no signs of fading - looks as good as the day I bought it. I shave with it six days a week minimum.
I had also thought about this. Would the plating wear off quickly. I recently saw a photo someone posted on here (can't find it now) which included a vintage gold (plated) razor. If the longevity of that is anything to go by, then the futur should also last. I'm also considering a gold version of the slant.