Rented space is absolutely feasible, proven by Google, Dropbox and Microsoft. As always, the fact that you don´t like it, doesn´t make it less feasible.
Ok, fair enough, but I still think the cloud storage solutions suck, ha ha. The pay once SAFE network model is much better imo. And to introduce a pay per time model in a SAFE fork or something like that will make it less competitive than the original SAFE network. At least that’s my guess.