I found a local place that does refinishing for wheels at $150 a pop. I've seen their work firsthand and they use OEM grade paints/shades so the wheels come out nice. I have a spare set of rough 193s sitting on the side of the house I've been meaning to refinish so it would be $600 for the set. Basically the cost of a whole extra set of 193s but this way they come out minty fresh and ready for more curbrash
Tl;dr it depends, call around. You should have a local place that does wheel refinishing. My place is about 20 mins away from my house