I don't get it.
In OZ, I pay a set per-month fee for a certain (maximum) speed and a number of GB per months. Admittedly, in my case I compromised: I chose a lower speed (512Kb/s) in return for a high GB (unlimited, but effectively 180Gb at that speed).
Having done that, it's none of my ISP's business what I use the pipe for. It shouldn't matter whether I use it to play on-line games, have VOIP, host a website, visit websites, have my own personal mail-server, use BitTorrent (I watch JDrama and anime), or listen to online radio stations.
And if protocols come along that *have* to have fat pipes with no contention (I'm looking at *you* VOIP)... what the *heck* are you doing on a public internet line? Did you even *look* at what traffic was like on a typical pipe? Let me guess, you're the kind of protocol which buys a house under a flight path and then complain that the noise is too loud, right? Because, of course, *your* usage pattern is more "correct" and important than mine.