The above is a Japanese ranking of different 100 colours of the K-x, as at 12:30 p.m. of 10-2-2009. (Source: http://pentax.photoble.net/?exif=091002001)
Guess what are the most popular colours and what are the least popular ones? Go figure it out yourself! :)
Update (1-7): Here is the Official Ranking Page:-
http://www.camera-pentax.jp/k-x/#/ranking
Well, now people like the Panda most and then the Fire Engine next.. ;-)