I'm just not understanding why a business would pay 200 bucks a month for this. Even at the cheaper price point this just seems a tad silly to me.
Maybe we are not communicating the product well on the site.
It's OK to say "we don't think enough people will pay enough for a one-time purchase to cover development costs". You don't have to invent some kind of technical reason for it to be a service.
But having said that, I cannot believe that companies would pay the amount you're asking for a service either.