Is it true that white men tend to find black women less attractive? I do know that myself (white) and my wife (black) find very few other couples of the same racial mix as ourselves, but I was thinking there were other explanations.  
 
Recently I read (here?) that there was a STRONG tendency for women to prefer same-race partners, and that black women were the most race-preferring. In monetary terms, I recall $250K difference in annual income was what a white man would have to make to be preferable to a similarly attractive black man. 
 
I suppose the Porn actress issue that razib brings up is good evidence in the pro- camp though.