It would make sense in fringe cases, but not for mainstream use. Purchasing access to exclusive content with pre-paid minutes is not a new thing after all, but

It would make sense in fringe cases, but not for mainstream use. Purchasing access to exclusive content with pre-paid minutes is not a new thing after all, but most people want either buy-once-pay-once or "manageable monthly/annual rate", not a highly variable and potentially very spendy financial timebomb ticking away on their computers.