I know JJ, i mentioned that :p
It probably wouldn't last too long but it's more of a temporary styling thing. I'd be tempted to try one wheel out for a week or so before doing the rest.
If I was to go down the 'plastidip' route, I'd rather go the whole hog and paint normally.
I've seen other products that claim to give great 'diy' paint finishes - like rustoleum's 'combicolor' although that does require a good prep job and can require some papering afterwards if you don't want an orangepeel effect. Apparently if you get your mix right and no bubbles, it can smooth itself well. Then again, that stuff will last a long, long time.
