Re: Gigabit not needed, what a load of crap!
Really? 15 Mbits/sec will just barely see out one DVD quality video, with enough bandwidth left over for a couple of browser connections. The only way to get 4K video down existing pipes is massive compression which makes a mockery of the format. 8K (already a thing) will be worse still.
And while few would fully utilise a gigabit pipe 24/7, games and their patches are constantly growing in size. I've already run into one 20 GByte, day zero game patch (4 hours+ over ADSL2).