Does anyone actually buy Aura Rings?

my friends is dexless and he uses a pineapple load of dex equips+rings to equip his casters

Or here is a crazy idea he could like you know put 4 AP into dex then he wouldn’t need to buy 4 rings every 90 days. Oh wait no what am I saying. That’s just a crazy idea. That would cripple his damage so much that he would probably have to quit Maple through shame.