I can't comment about wrapping a complete boat but I can give a bit of input about wear and tear.
Our boat sits in a boathouse and it is a tight fit. She has to be pulled completely forward against the stern lines or the door will not close at the stern. The surround walkway at the bow is, as is usual, cut into a V. The edge of the wood is wrapped with the dock protector typically found at West Marine and marketed as "non-marking". In calm condition there is may be four or 5 inches between the protector and the hull. As you can imagine, during winter storms or even just windy events throughout the year, the boat bounces, sometimes quite violently, from side to side. The protector, despite rinsing, picks up salt and grime that act as a grinding paste. This became really apparent during the first year of owning the boat. I was polishing out the scuff marks on almost a weekly basis and it was soon obvious that I would be removing the gelcoat quite quickly.
After the first year we bought two pieces of clear 3M wrap material from a local installer, each approximately 24 inches long by 10 inches wide. The installer gave us nice round corners, a piece of squeegee material, lots of instructions and my wife and I found the installation easy.
This week I hauled the boat as I do twice a year to replace the anodes. During the summer time haul out I usually also wax the hull. While I was going around the hull I noticed the various minor scrapes and bumps that happen from things like bumping a mooring buoy or contact with the dinghy. I did smile when I saw the condition of the 3M wrap. It is perfect after four years of quite severe abuse. It occurred to me then that a wrapped boat would take a lot of abuse without showing any damage. This is the same stuff that is used on the front end of cars to protect paintwork from stone chips etc.. Friends in Europe swear by this same wrap to protect cars that are regularly driven at 120 to 150 mph on the autobahn. Any stone chips or cuts that do occur are very easily fixed and the joints are imperceptible. No paint, ceramic coating, wax or anything else is going to provide that kind of protection. If I were buying a new boat, including a standard colour, it would be wrapped from rubrail to waterline, probably clear.
For the record, I am not in the business of selling or promoting the product. Simply passing on my experience. If you would like a couple of photos of the film in place, please PM me.