[quote=@Penny]
I deliberately play characters of a variety of races/ethnicity but frankly most of my stories are about shooting things in space so it is rarely a big driver of plot. 
[/quote]
I disagree. Your characters drive a lot of plots in my experience ;) 

On topic, I usually like playing the odd one out, though not in a game breaking sort of way. Unless of course I just feel like being something tropey, like a Prince. 

But I agree with [@GeekFactor] that you don't need to have diverse characters to have fun. A lot of roleplaying isn't about you being someone you're not, but [i]experiencing[/i] things you usually do not. If you feel like being something you're familiar with, more power to you. It depends on the players/user, honestly.