Or $30 per female and $25 per male - with a $5.00 discount for buying a pair @ $50.00. But you're right - it all depends on your ratio of "pink-to-blue!" They sure are gorgeous birds, though. I wish I had room for standards, but I'll just continue to live vicariously through my bantams!
Also - consider selling them as "pairs only." That way you don't have people buying just the pullets and leaving you with a bunch of bachelor chicks. That would also encourage people to raise them on their own, which may help boost the breed.