Look, I am probably an idiot, but I simply do not see how you would determine in advance who might want to pay you later for your upfront cost of keeping their data. But, hey, people do stupid shit all the time. I certainly do. I am just wondering out loud what the business model is here. I do not see a viable business here. But since I am not exactly rolling in dough, maybe that is just my own stupidity. Regardless, my suggestion is that there needs to be a payoff for doing this and if you are going to get someone else to seriously consider putting their time, money and effort into your off the cuff suggestion, it might help to point out the stupidly obvious means to rake in the dough with it.

Best of luck.