You can spot a Canon shooter instantly? Are not Sony telephotos also white? I would prefer my 70-200 to be black. I had the original 80-200 2.8L that was black and liked the color better. But it does not take tele extenders and it was too much carrying that plus the 300 4L to cover the range (in addition to standard lens), so I sold them for the 70-200 2.8L plus 1.4X extender. (Actually in between I used a Sigma 100-300 4 which was all black and sharp and great, but it stopped autofocusing and Sigma said repair parts were no longer available).
I kind of think the silver Pentax telephotos are cool. Alternatively, I really like the white bodies like the Pentax shown above and wish Canon made one because it would look great with their white lenses. If I was rich I would probably just have all my bodies and lenses done in a matching original paint scheme from Pimp Your Camera in Germany http://www.pimpyourcam.com/