What user groups are extraordinarily resistant to subscription models? How do you know this? Not to get all [citation needed] on you or anything--heck, I am resistant to subscription models! I just figured you have some data (yours or someone else's) to back that up.
Teachers, for one, haaaaaaaaaaate them. A lot of educational software must be rebought yearly. I've used lack of recurring costs as a competitive differentiator for three years.
OK. But--all things must end. If, say, you did not have a desktop component, are you obligated to keep the service up--forever? That's a long time. I wonder if--like a not-bargain price--a subscription fee is an indicator (to a different group, naturally), that you will be around--at least for as long as people pay you. Otherwise, what's to stop you from grabbing the money and stopping the service?
