If you don't mind waiting, and the breeder doesn't mind extending your deposit to the next litter, I don't see the harm in waiting for the dog your want. The breeder will have no problem finding a good home for the pup you pass on.
If you know what you want, stick to your guns so there is not chance of regrets.
Yes it is just aesthetics, but if you're paying, you should pay for what you like.
Ultimately you will be happy either way when you bring home a dog to love.
Apsel der Schwarzbar -- Dark Sable -- 10/31/2013