I think its a really good idea. It would be cool if you could have an on/off switch to make pausing more difficult. For instance, I know that for myself, as soon as I wanted to spend that money I was saving, I would just pause the service. But if I could make it harder to do that (I.E. make it so I have to do several prompts to pause it, answer some math problem or something that would take me more than 5 seconds to open an app and hit pause), I would certainly turn that on for myself.

Just bouncing an idea out.