It would be nice if companies like this gave a significant benefit for returning cartridges, especially given the enormous markup on the detergent. 25 or even 5

It would be nice if companies like this gave a significant benefit for returning cartridges, especially given the enormous markup on the detergent. 25 or even 50 percent off if you send your empty cartridges back. They would still extract the absurd full price from the lazy.