I have a 15" cube van, 1 ton van, and 16' enclosed trailer that are all wrapped. After 6+ years (parked outside with no cover in Oregon) I'd have to say without a doubt it holds up on par with paint. I'm assuming replacement will be much less also. Originally the cost for all 3 units was $7K.
Honda did their F1 cars in a vinyl wrap one year. The vinyl definitely held up better than their engines.