Correct intent; but too much clarity and too overtly transactional. Unfortunately, The Ruinous Powers in service to ‘free-to-play monetization’ already have a great deal of expertise in building subtly coercive interfaces, and I doubt that they will see a lack of demand for their skills here. One of the things to avoid, it turns out, is that sort of clarity and that reminder that you are suddenly shelling out real money here. At least one level of indirection keeps the user comfortable longer.
Have a look at Ramin Shokrizade’s discussion of top monetization models(the other posts he links to are also fairly interesting) and imagine the wonderful world of appliance UIs designed with those goals in mind and probably linked to your fitness-tracker-bracelet-fad-thing so that they can better infer your affect state and vulnerability level by correlating biological markers. It’ll be Peachy Keen.