I'm not trying to offend those of you with white cars. I have had two 300zx's an R32, R33 and now 34 so therefore I've been around skylines for 7 years now. I personally know a handful of importers and alot of dealers in the trade. Additionally, I know a few of the managment of Nissan uk.
Why do you think that the uk 33's and 34's where never offered or sold in white? Answer, because they do not sell at anywhere near the rate of other colours, why, because of low demand which translates to lower residuals. The view of my friends in the trade (above) including Nissan themselfs is that they will ovoid white like the plague unless the car is particually clean and cheap.
For example: There where aproximately 1200 uk 300zx's sold between 1989 and 1995. Out of the first 100 brought in to the uk 25 cars where white. They sold so badly that big discounts where eventially given on them just to shift them (source Nissan uk) which equalled lower residuals. After that experience Nissan only sold white 300's on special order. A further 17 where sold out of 1100!
Ironically I wanted a white 32 when there where only 30 in the uk (two of which where owned by the md of nissan uk) and was told not to get white as it would be difficult to sell again.
As another example the reason Andy Middlehurst's racing 32 was white was not out of choice but because he got it cheap.
I rest my case.
PS: It's not all bad though, you've still got the best car in the world and fashions do change!