I had a customer of mine deal with a company locally who does wraps and he was charged $600 for the design. He ended up not getting a wrap because he was outraged they charged him that much, So i guess they go for about what insignia said too
That's typical with customers in the sign industry as a whole. Alot of people have no idea designing any of this stuff, be it a sign or a wrap, takes any time, and so many shops out there give design away for free that it just perpetuates that notion. Selling design for a wrap or a sign is like selling anything else. You have to educate your customer on it's purpose and it's value. You have to get them to start thinking in terms of advertising and marketing, which amazingly most people do not. Then and only then will you get them to realize that quality design has significant value and does not come cheap or free.
I tell people who are surprised a wrap design costs "so much" or anything to consider other forms of advertising. I ask them if they think TV or print ads for companies like Microsoft, Apple, GM, etc. cost anything to create? I try to make them think about the true cost and value of other forms of advertising. Usually you can see the lightbulb turn on when you relate it to other mediums they may be more familiar with... The bottom line is a wrap can and should be a highly effective marketing tool. But a wrap is only as effective as the design. In the end, quality of materials, installation or what printer a wrap was printed on don't mean squat, it's the design that makes or breaks a wrap. And as with anything in life, with design, you get what you pay for.