Signs101 has a lot of information on this. I would say this has a lot to do with what you are selling. Vehicle wraps, a lot of overlam product, or indoor posters and signs?
To be clear......I'm not really asking where to go for answers. I'm reaching out to the forum to see if anyone else is looking for answers on this question. Seems to be a very popular one i run into at tradeshows. I can be a source for help and direction.