I belong to a lot of reptile selling Facebook groups for Canada/Ontario and it amazes me how saturated the market is, not only with normals but with higher end morphs. People can't sell their snakes because so many breed them. Every post is lowering prices and offering special deals because they just want to move the animals out. Normals are either given away (sometimes as an incentive for buying a higher end morph. Buy one get one free!) or sold for $10-$20.
I think Normals are adorable and I'll probably end up with one someday because they're so readily available and cheap. I don't think there's anything wrong with breeding them, personally, but I think you have to be prepared to keep them. If you produce 10 normal hatchlings, you might end up keeping them all because you can't sell them. As long as you're prepared to house and feed that many normals, all the power to you.
I think it would be cool to breed. It seems so exciting. But I would never do it just because there are so many ball pythons. I belong to 6 groups that are ONLY for ball python selling and people posts huge lists of available 'stock'.
What if you tried breeding a different kind of snake that's not readily available in your area? I've been searching desperately for a Rosy Boa but there literally aren't any breeders in my province!! So if I ever decided to breed an animal, that's what it would be, lol.