I will venture to guess that they don't win many shows with the "Barred Rocks"Here at our feed store, they order from a breeder who actually owns the store himself. The birds you buy there are quality birds. Not that I've bought any myself. They don't have a huge selection. Delaware, Barred rock, Rhode Island Reds, Wyandottes, etc and none are sexed.
The owner actually participates in shows. http://cspoultry.homestead.com/ - so it's not true that all feed stores only resell hatchery chicks. It isn't ALWAYS the case, but a lot of the times it is.
To me his Barred Rocks look they are production type fowl and not truly bred to the breed standard.
Chris