Especially for the big-box stores where husbandry practices range from less-than-ideal to criminally negligent, I would be more inclined to shop at them if they were a pet supply store, and not a pet store. Southern States and Tractor Supply don't seem to be hurting for business, and they don't sell cows, horses, pigs, sheep...

If they needed something to sell instead, consumables like F10, mite spray, bulk aspen or cypress mulch, decent spray bottles, tub liners, etc. would probably generate more revenue for the store anyway.