I love vinyl wraps - our company cars are yellow which is a horrid colour for resale (in a van or hatchback) so we buy whatever colour is cheapest off the lot and wrap them.
As a result I've had our signwriters wrap a couple of non-work cars when I felt like a colour change. It's a cheap way to get a brand new lease of life on a car and is easily removed when the time comes.
For those contemplating a DIY wrap, take a look at the time involved in doing a professional job before you determine if it's worth paying someone to do it for you. The last personal car I had wrapped took 80 man hours - 4 guys working 2x 10 hour days. The results were fantastic but I'd hate to have tried to do the job myself.
Gallardo Vinyl Wrap Timelapse - YouTube