I was about to type something along these lines earlier, but bailed. You're paying the facilitator for a service. It's not exactly cheap to fly around the country, stay at hotels, drag around fat stacks of books, walk a 50 mile lap around the convention center every day, stand in line, prep books, fill out paperwork, etc. I certainly wouldn't expect someone to do it for free, and god knows I'm too lazy to do it myself!
This. People deserve to be paid for work performed and services rendered, especially if we would expect them to be done well. I don't even mind paying (most) creators a fee for their signatures, because they often couldn't/wouldn't appear at a show without compensation of some sort. But expecting to charge more for a CGC book is unfair. I've always thought that if these creators think that their signatures are adding so much value, then they ought to submit their own books for CGC and reap all the "fat stacks" themselves. If they truly believe that everyone is making mega-profits then that would be an easy way to move to easy street.