Ive always thought that a brown egg looked a lot healthier and gives the illusion of being laid by a fit healthy free range chicken,where the white ones that look to me like they've been laid by a sick malnourished battery chicken!
WOW! Pastafreak,i did'nt know that and what was equally surprising was how many different breeds there are of chickens,ill never look at a bucket of kfc the same again! (in a good way as i love it!)
Most people now think like MrHurlAbuse - that the brown ones look healthier than white ones, though there is absolutely no difference. The white ones are probably sold to catering firms, though I have seen them for sale on markets. Funnily enough in the good ol' US of A all the eggs for sale in supermarkets are white.