I like using Plasti Dip to test out options and feel out the direction I want to go. It's nice to be able to tape some things off, spray it, and live with it for a week. If I'm not feeling it by then, I pull it off and try something new.
That being said, I am also not of the opinion that everything should be Plasti Dip. It does appear that it is starting to go the route of, um...
On a final note, it's your car. If you are cool with it, spray away.