For bettas - I tend to go for the ones that need TLC as long as they aren't on their last legs, er, fins. They have to be responsive when i pick up their little cups. I don't mind ones with fin rot, ammonia burns or missing tails but I don't want to mess around with actual fish diseases like ich, dropsey or velvet.
If you stop buying the sick ones and let them die at walmart maybe they will learn that neglected fish dont sell but with you all supporting these people it will never happen.
Since walmart sells plenty of high ticket items, i doubt it would even show in their profit margin weather we rescue their fish or not. why should I let a betta that has a chance at recovery (not talking one thats at death's door) with fin rot stay there and probably die because no one else wants a fish with no fins, when I know how to treat it??
That being said, I would LOVE to have one that has PRETTY fins, in a pretty pattern, just once. Although I don't dare order one from thailand, i'd be upset if it was DOA :(