Count me as one who likes the transition. I haven't yet been on a flight where the CC machine wasn't working, and I have actually seen far more delays when pax pay with cash...like when everybody wants to make a $5 expenditure with a $20 bill, and the FA quickly runs out of change. I also suspect it's an additional burden on the FAs, having to reconcile the products that were used up vs. the cash on hand.
Guess we'll see in a few weeks....