I don't want to revive this post, but I know some new members will search for Registration info and this thread will come up. The insurance provided when you register is only 30 days now. Though, you can buy the AKC Insurance if you would like to continue. However, I would look at Healthy Paws instead. They have great reviews across the board and I'm not sure I've read a negative thing about them anywhere in the forum. It's slightly cheaper for a similar plan with the same deductibles.
As far as registering your dog, why not? It's a minimal expense at only $30 for basic registration. Plus you get the added benefit of being able to train for and join AKC competitions(Conformation, Agility, Hunt Tests, etc). If you want, they also have upgraded packages with each adding to the previous package, like extended pedigree, AKC Reunite program, and more.
Either way, $30 is not much of an expense to register your dog. Just go for it!
-- There's nothing better than chasing Vizslas chasing birds! --