said by tshirt:Yep. Maintaining the capacity capabilities of the "last mile" infrastructure is more costly than is the farther upstream transit capacity.
And when you "fill up" those 8 channels, then there is the expense of once again expanding the plant capacity, a step more expensive then all the backbone bandwidth you'll ever use.
The network is fine right now, because they are able to limit growth of demand below that of the ability to upgrade capacity.
If you want truely unlimited capacity, be ready for the truely unlimited bills it brings with it.