Few weeks back, I managed to get a great deal on craigslist — $600 for STi BBS rims with mounted nearly brand new RE070 Bridgestones and nearly brand new TOYO Proxes T1-S. Latter I already sold for $225. I haven't decided to sell RE070's yet, but surely if I do, I'll end up with free rims. 
When I came to pick up these things, rims were in awful shape, looked like nobody ever cleaned them, and every rim was curbed. But I decided to get them anyway, figured I'll refinish the wheels make it gunmetal colour.
Today, picked these up sandblasted by Gate City Monument in Nashua,NH, and they're looking mint:
On the bottom right one, lip will definitely need be repaired. On the rest, repair will be either minimal or unnecessary.