Here's why I replaced my front wheel. After I bought it, I found this funny crack on the rim while washing it. I couldn't understand why air wasn't leaking out.

I had bought the car from a Ford dealership, and part of the work they did when they got the car, was to replace the TPMS sensor in that exact wheel. That wheel also had the plastic wheel center cap that was gouged like someone used a can opener to remove it, and it also wasn't seated on the wheel properly (the only wheel of the four to be in that condition).
Somehow they managed to replace the TPMS sensor, and not notice the JB Weld right next to the valve stem area inside the rim. Giving them benefit of the doubt, maybe they only popped the tire part-way off the wheel, and replaced the TPMS, and never saw the patch on the inside of the rim.

Of course, the reason they were replacing the TPMS, apparently was because it was "missing"; which my tire guy found the old one rolling around inside the tire, since the plastic body was broken ! One would think if a Ford mechanic is replacing a bad sensor and it's just missing, they might think of looking inside the tire for it.

They messed up almost every single thing they did on that car to condition it for resale. I don't think I would ever take my Ford there for service, after seeing what they did on all the other work also.