Time for Alcoa wheels!
Hearing this story just confirms my desire to be rid of the heavy steel wheels, hub caps, rubber valve stems and install the Alcoa Durabrite wheels and metal valve stems. They look better, weigh much less and no chance of a hub cap flying off at highway speed. Plus I've heard no complaints of being unable to check tire pressure with the Alocoas.
I'll have a full set of hub caps available (assuming one doesn't fly off on the way to the wheel shop) if someone is interested!