Be prepared. A full car wrap is going to run you 3-4 grand. I looked into it when I bought mine.
And a proper repaint is 8-10 grand....so....
Ya, for the money, its worth learning to do it yourself, or just using spray dip.
Doing a proper wrap correctly is very skillful, it's not just slapping some material on and calling it done. Spray dip.......well........if you just need it to look good from 100 yards away. lol
As for the multi color designs and decals, looks good on a platform at the car show or on the track.......but when you walk out to the car in the Best Buy parking lot you're going to hear a lot of laughing. Ultimately only one person has to like your car and it's you, but I wouldn't do it.