If that 5.1 turned out to be say a 6 core.. omg.. overclocking market would tank overnight..
People would just buy a dual socket board , and wouldn't have to upgrade for 10 years..
There'd be no point to overclocking..
ALso, if you think about it.. it might even go for 20 years.. because power efficiency isn't useful to the average consumer, because cost of electricity is not a major issue with even 10 modern cpus...
I think I'd happily pay $400 for the board and up to $800 for that cpu..