To Powder Coat or not to Powder Coat?

["Mark Hooper" <mhooper@digiscreen.ca>]

I've shipped my rims off to Newton, MA after deciding the 
www.rimandwheelworks.com seemed best able to deal with my wonky wheels. I asked 
them to sandblast, true and powder coat the rims. All are go they say except 
for the powder coating. Apparently they feel that it is not done to P/C a steel 
rim and they wish only to paint them. Is there some sort of sound reasoning 
behind this? Flexxing etc? 

Mark
1972 TR6 (with no wheels)