Not trying to de-rail the ice maker question, but if you're going through alot of ice in a cooler (presumably away from the RV where you cant just keep stuff in the fridge) then a good cooler is worth the money.
If you're hammering through the ice sitting in the shade next to the RV downing cocktails, invest in a couple Hydro Flasks for your drinks. Your ice consumption will go down considerably and your booze consumption will increase!
Stay thirsty my friend!
365 days a year, Hydro flask is the go to for hot and cold drinks. Camping, empty out the last morning coffee (still warm around noon). Fill with ice and get the cocktails rolling. Next morning have to dump out the ice that's left to fill with coffee again!