dboreham parent
Perhaps because the 40 million units rely on an expensive back-end service that isn't covered by monthly fees to users?
Probably was, but that's just stupid business decisions.
Your pricing model should reflect your real-world costs. If it doesn't, then update your pricing model.
If consumers can't do the new pricing model, then your real-world costs are probably out of wack. Which they would be in this case - there's no reason a vaccum should require expensive backend services.
Don't give them ideas.