Sounds great. Maybe, in addition to working on price segmentation, one way to leverage the behavior (“stickiness” as you call it) of your users is to create a

Sounds great. Maybe, in addition to working on price segmentation, one way to leverage the behavior (“stickiness” as you call it) of your users is to create a mechanism to make them refer new customers to you: you can create an inexpensive growth engine, for example like Dropbox did with its referral program.