You have to know what it is to know if it's worth it to you.
While camp might be a highlight for you, it's a drudgery for the players. The team practices while you watch. They don't owe you anything, they don't put on a show, they don't move their drills so that people have a better view. Half of it is in fact stretching and individual drills/fundamentals. Some days you might get lots of special teams work - punt and kick coverages. Days before games you get less intensity. If you go with smaller kids be prepared to watch very little actual practice as it's dull for them. No announcers, no scoring, no cheerleaders, no jumbotron, no Billy Buffalo. There is a kids game area with some of the activities they have in the field house before games. There is some basic food with burgs/dogs/pizza. The team store is there.
But it is a more intimate look at the team - you can meet players at the fence and actually see their faces/talk briefly. You can see/hear the coaching that goes on. So if you have an interest in the Xs and Os it can be very cool. The players can hear and sometimes will react to your shouts from the stands.