Frankly.. I'm tired of arguing this over and over again. I think the members of this board are at an impasse on this particular discussion.
Any-who... here is my take on it.
What is the point in breeding for experience? Why must we "experience" breeding fish? There are so many fish dieing in pet stores every single day and others who are being carted off destined to live out the rest of their short, miserable lives in an unsuitable living environment due to lack of education on the owner's part, why would anyone add to that?
If your (generally speaking) breeding for the sake of producing a line of something or improving on something then more power to you.. but what is the point in breeding for "practice" or for the "experience" of it? The only thing that can come out of that is more fish that need homes in a world already filled with homeless fish.
Yes you can argue that if this is the case then no one should be breeding... but let's face it... How many fish bred from quality lines and sold directly from breeder to owner end up in a tiny tank with little to no care? If you can't find homes for your fish and have to resort to selling them to pet stores or on craigslist then there is something very wrong. Granted there are some pet shops that may take excellent care of their fish and promote quality care to their customers... but how many shops like that actually exist?
I could list a million and one reasons not to pick pet store stock but as long as you know and are prepared for the consequences (whether they be good or bad) of choosing stock from a pet store, well then I find no reason to argue about it.
I guess what I'm trying to say in this long winded post is, in my humble and honest opinion, as long as you are breeding for the right reasons (and yes, I do believe there are "right' and "wrong" reasons to breed) where you get your stock is not quite as important as what you will do with that stock.