I'm generally interested in Gigabit wifi routers since, you know, I'm working on an ISP which does a gigabit, and your wifi can't keep up. I expect this to be a fairly critical market perception problem (because people will go to speedtest.net and say "I'm not getting a gigabit!", not so much because it'll be actually slow).
Also, the first comment at the bottom of the article: "If it can't broadcast from one side of my house to the other, I don't give a ** how fast it is."
The commenter makes a good point there - that reliable signal is better than a supposedly super fast connection.