I feel H2290's pain too. After having only black cars for the last 10 years (around 20 cars total), I bought my first silver car a couple weeks ago -- a Silverstone 350Z. First day I had the car, I used PO85RD, Prime, and AJ x 3 on it.
Did it look nice? yes.
Do I get the same satisfaction at the end compared to when I work on my black cars -- absolutely not.
On one hand, I have some regrets with my color decision, but I will admit it does have some pluses (hiding dirt, etc) but the extra work that black cars take to maintain never bothered me. I always looked forward to it because it just gave me more reason to work on the cars.
Just my 2 cents.... :nixweiss