IMO.... limits are a bad business practice. I'm a paying customer, cash in hand, right in front of you ready to buy a product you are offering to the public. If you insist on a limit, put a sign up saying "LIMIT ONE" or adjust the price to keep someone from buying a stack at cover. If someone told me to put them back, it would be my last visit to that store.
I can't stand lazy store owners that don't track the market and when you get to the register have an epiphany and say, "Oh yeah, I need to mark this up" or "Oh yeah, you can't buy but one of those." I would be like, "Oh yeah, I forgot why I would rather buy from someone I trust online..."
(thumbs u completely agree!