I used to own a Platinum Plus (that one was parted out in 2011). In comparison to my early 1986 Beige Plus (which I still own) I would have to say that the lighter colour was an insignificant change. It's still a very elegant design (far superior to the SE, although the SE/30 was a substantial improvement).

IMHO, I would have preferred a darker colour (i.e., black or indigo) just to stir things up.