Basically looking to replicate the Biz model that the companies selling Teeth Whitening, Aciaberry, and Internet Biz Kit are using. That's where the customer thinks they are paying $x because they are to lazy or naive to read the Terms and Conditions which is in fact the contract, So they end up paying $xx per month. I think this method could be improved upon by charging a lower monthly rate that wouldn't be noticed or cause for alarm on the customers bank statement. Say $9.73 with a description of Qwikstop. On an upper middle class demographics statement this may go unaddressed for a long time. If you provided an easy method of unsubscribing you could probably avoid inquires/charge-backs with your merc/gateway. Since they're charging $100 a month in this method and with the prevalence of their marketing this must be a lucrative and proven biz model.