I will agree that some stuff on the WA web site is misleading. The biggest to me is the large subscription ad on the Solutions page, and solutions are not included in the subscription. I know it's not saying they are and it's just a banner ad, but it is misleading and I almost thought for a minute that Solutions were included. I don't think WA is implying it includes Solutions, it's just that as a site wide banner ad, it is very large. Obviously Solutions can not be included anyway, because if you cancel your subscription there is no way of deactivating a solution.
But as for the activation fee being one time. As I understand it the activation fee will activate your subscription. It's purpose is to prevent people from jumping back and forth or on and off of the subscription. So if you pay for one month and then cancel, the activation fee is null and void too. Then, if you resubscribe, they have to "reactivate" you. Therefore a new activation fee. It's only a one time fee if you continue your subscription without any laps.
I think that's correct anyway.