Suggestion for potential done right

There, now it costs a fixed $215 to get a perfect world potential item. Just perfect scroll it first (good luck with that) and then pay your $215 and you will have the best damage ever. It's better than items that are like "OH HAY I'M GONNA BE PRICK AND NEED 100 CUBES FOR UNIQUE, 200 CUBES FOR LEGENDARY, 300 CUBES FOR LEGENDARY 4TH AND 5TH LINES, AND 400 CUBES FOR A RANK NEB THAT DOESN'T SUCK" because pineapple needing luck to do everything.

Then why don't they just sell perfected items in a seperate shop, so the cash shop goes back to purely aesthetic items and you can pay a fixed amount for weapons? I'm not being sarcastic, I'd actually like that more than the current system.