I agree with you on most of your points, but with that said.
1. The adult volunteers are there to help the high school kids are forced to be there because thats how some of their program is funded.
2. Yes they do owe us something, we pay for the kids to wrestle, we don't pay for tableworkers to be texting, messing with their phones ect.
3. Bad tournaments give the sport we all love a bad rep. Being in a gym from 8-5, or being stuffed in someplace like sardines doesn't exactly send a message to new parents to keep their kids out for the sport.
4. Not every tournament is perfect, there are mistakes at every tournament. People don't want to go to a poorly run tournament by choice. More often then not, it will happen the following year.
5. Tournaments keep getting more expensive, and the awards keep getting cheaper. We have been to multiple tournaments where brackets aren't even given out to the champions, or the medal doesn't have the ribbon to go around the kids neck. For the older kids that have been around a while it isn't as big of a deal, but for the little kids, thats a big deal.

So to sum it all up, poorly run tournaments, all day in a gym and bad awards is going to kill the sport. Why do you think entries and numbers are down? Bad economy, maybe a little, keeping new kids to the sport out, a lot!