Re: Why, why, why?
We are looking for one, just one, real or imagined application that people will realistically want that requires more than 5 megabits.
2 megabits is plenty for Netflix on a normal TV (I know, that is all I have) provided no teenagers in the house. Nothing else takes bandwidth like television.
And while video compression has improved over the years, it still has a long, long way to go, with fractal based algorithms promising massive reductions in required bandwidth. And engineers have been able to push more and more over old copper as well.
So that is why. There is not point. It is like digging everybody's front yard to give them a 100mm water pipe. Sure, that would enable them to have 50 showers at the same time, but that is not actually useful to most people.