I wish my bank had Keep the Change...but I shouldn't complain because I get all my ATM fees refunded and I get a percentage of my debit card purchases back each month.
Discussing major purchases is important--but my husband tends to not always listen, so as long as he's using "his money" I don't care. We have a Harley that I was absolutely dead set against--it would only be more aggravating if I was helping to pay for it. Talking will (sometimes) only get you so far...
Bless his heart.