The post office has a similar system, except they charge customers differently to get information to the recipient faster. Overnight costs more than first clas

The post office has a similar system, except they charge customers differently to get information to the recipient faster. Overnight costs more than first class for example. If DPI were used to allow customers to pay based on priority, would that be acceptable? For example, if you only want to pay 1 cent per GB for a torrent download that gets packets to you at 1/3 the rate of HTTP packets, which cost 2 cents per GB, would something like that work? I am not proposing it, just continuing the post office analogy.