Not at all.
I am saying that the plans are an initial purchase, and different levels of support are another optional purchase if you feel you need more support than the experienced customer.
I personally would pay $20 a month for questions and FAQ's that may not be answered in the plans. Some would say that the plans must answer all questions initially or that it is the plan providers responsibility to answer all of these subsequent answers. I think its a bit unrealistic for someone to continue to answer irregular questions month after month for an initial outlay of funds. No professional trade that I know of offers unlimited lifetime support and I would not expect it of a plan provider either.
The downside of purchasing just the plans is that until you have built a system and have the experience, it is impossible to evaluate an unseen set of plans prior to purchase as relates to your specific need.
As per the cost - $20 a month seems low enough that I might let a subscription ride for 2-3 months but relevant enough to the administrator to take the 5-10 minutes for a sufficient answer.
But again.. its just my opinion