I'm not trying to pursuade anyone to use the cheap paint. It's just my opinion that it is just as good as the expensive stuff. You can think about it this way. Do you really think the calipers are going to look shiny and glossy all the time? They are brakes, they are going to get dust all over them. No one is going to be down there inspecting them with a magnifying glass. They are behind your rims anyway. How do you know it's "proven to last". Just because they said so? They must have magic paint that looks good all the time.