In 2013 the online caravan trip detail information was very limited (all caravans). Perhaps they want you on the caravan rather than using their guide.
We met a couple that let us copy their caravan travel information and it contained pages of detail. Most of it we had already figured out but it proved useful. BTW One of their group spent 10 days in Fairbanks for MH repairs and the group did not wait.
We wanted to be on our own plus we balked at the high caravan cost. But we went to some of the same CG's, tours, restaurants and spent much more than planned.
Two different experiences: Deep Creek Beach 30 miles north of Homer, dry camping. We were amazed at the boat launching, eagles and camping on the beach. We had to burn some coal in the fire and that was an experience with the smoke and it stays hot for a day... Fjord Express out of Skagway/Haines to Juneau was a fantastic trip. Not a canned run as the owner is extremely knowledgeable of the area. He heard of whajavascript:;le feeding and from Juneau ran 8 miles south (Haines is north) and the 3 whales were still feeding. $160 each and we would go again. Can't recommend most of downtown Juneau as it's a Caribbean jewelry shopping mega for the cruise ships. Skagway has some of that as well.
Caravan advantages: No CG check in as everyone has a radio and you follow directions directly to your site. It's a group experience. No driving to a tour or restaurant as their is a bus/van for the group. A morning meeting explaining the days activities, driving, etc.