I used to do wraps (still do advertising stuff) but 3-5 years is about the average life. We did a lot of ski/wakeboarding boats with great results. But when it came to larger boats I was less than impressed with the result so we avoided doing them. We did do transoms and lettering. But the costs to do a larger boat just didn't seem right for how long it'll last.
One thing I'll add is a lot of big yachts that are wrapped are under charter
or just off charter
and are wrapped as a way to change the image. Its a fast way to get a new look. In that realm they're not concerned about longevity and its a cheap
way to "revamp" a boat to freshen its appeal in the market.
As long as you have realistic expectations and have seen the company's prior work
,its great for what it is. But don't expect the longevity of paint
. It is a temporary product no matter how they try and sell it.