Without wishing to state the obvious, colour is a very personal thing. As for resale, well, again, some people either don't consider it or are in the position not to care.
I wouldn't be surprised if that Plus Six wasn't specced by MMC themselves, specifically Morgan Design.
They seemed to favour certain tones, specifically old Porsche heritage colours, for awhile; Heron Grey is one such colour. Like Craig, I also owned a Sport Sand Trad, which again, alongside Sport Grey seem to reference older colour palettes.
Personally, I like it on a Porsche 356 or an early 911; however, even then, it wouldn't be my first choice but it does provide a vintage look.
