IMO Camp Jeep is definately worth the price. You get 3 days of absolutely everything Jeep and a whole lot more. All of the free give away stuff is almost worth the price to go.
I don't think there is any other event like this where you can trail ride one day, talk to Jeep engineers the next, you also have 1 on 1 access to many of the manufacturer suppliers of Jeep components like New Process, Goodyear, Dana/Spicer and lots more. Plus, with all the activities you will be hard pressed to see everything, and the Grand Finale Show & Fireworks and the best I have ever seen!
Go, you won't regret it!