Depending on how bad you dammaged them, they can be repaired. I personally have had a wheel repaired, and it worked out well.
On a stock wheel, I wouldnt. The repair is usually "pretty good" but I would rather spend the money and get a new one.
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Darius Rudis
Roadracer: Home built t-arm/panhard suspension powered by an S-trimmed motor :-)
My Mustang Page