1 stept forward, 2 steps back....
Just like somebody mentioned earlier, it was not too long ago when metered connections where offered by most ISPs for dial-up accounts but where dropped due to the popularity of unlimited always on connections.
Back in the days when we had a true free market for ISPs in Canada, it was soo easy to switch to the provider who offered what you wanted at the price you wanted. Free market decided what model best served people's needs. Now that super huge coporations pretty much killed the ma and pa ISPs, we are in situations where these megacorps have monopolies and quasi-monopolies. If you don't like it, well there is not much choice.
I personally would not mind it soo much if they offered unlimited at the current price, and the metered connections at lower cost, but I somehow get the feeling this is not going to happen.
Ironically, there is a lot of people who blame these 5% of users for bandwidth issues rather than blaming their own ISPs. When you purchase unlimited, it means UNLIMITED, not unlimited but with a cap.....They are not doing anything wrong. Besides if 5% of people running at full speed 24/7 represents 50% of bandwidth, well doesent that mean that they oversold their badnwidth? Instead of having a 10=>1 ratio, why not try I dunno 8=>1 or 7=>1 instead? But no, heaven forbid those corporate profits come in first.
Besides if anything like this gets implemented world wide (I know some places already do use this model) it would pretty much kill certain emerging products before they even had chance to start (such as renting videos/movies over the net) and not to mention the negeative effect it would have on gaming online, streaming shows etc etc etc......