Our two oldest girls are from the snakefood bin. We bought them over two years ago now. They are the most well behaved and gentle girls we have, but one is also the most unhealthy. Feeder rats around here also seem to have a high instance in undesirable personality traits, like aggression, shyness, aloofness, etc. Not to mention bad health. We lucked out when we got two that are still nice to this day. We've spent over $600 on one for tumor surgeries and other vet bills.
Quality has nothing to do with markings and looks. Jazmyne, the one who has had and does have tumors now, is a plain hooded rat born of breeding in which quantity, not quality, was the goal. But we still consider her to be a very high quality pet. Because of her personality.
A dumbo we have, which some would consider fancy because of her ear set, is only a quality pet because of her temperment, gentleness, and personality. It has nothing to do with how she looks and her health is not the best either. She has myco flareups and possibly had a stroke last summer.
One rat we had, Astrid, was born from a breeder who bred the wrong way. Not for personality and longevity, but for looks. We never considered her to be a high quality pet because her health is good, but her personality isn't that great. She's very aloof and doesn't really care much about people. She reacts some, but for the most part would rather be left to her own devices.
Quality when it comes to rats is not in how they look, but in their longevity and how they respond to their owners!
This kind of response coming from fellow rat owners.. honestly it should show you what you should be breeding for. You should be glad to have peoples input on what they look for in a rat. It gives you something to strive for. Personality and longevity should be your first consideration in a breeding, not how the babies will look.
There is nothing in these above replies that merrits any kind of language or reaction that you gave. Believe me, on other forums, you'd have been banned or very very horribly flamed. This was nothing compared to what you could have gotten elsewhere.