Just powdercoat them if you think you'll be keeping them for a while. I Plastidipped my set a couple months back and didn't like the look. Went to remove the plastidip and was left with nothing but a headache. Spent almost 2 hours a wheel trying to remove the stuff. Granted it probably had more to do with me not applying it correctly, so I suggest if you do go the Dip route to test it on another surface.
But who knows. At $20 for a set of cans, doesn't hurt to test it out. Just my 2 cents.