I'd be interested in knowing how much these will cost before I rush out and line up for one. It will have to be competitive to get me away from the PS game titles.
Rumors say $499
That's my guess --- $499 is a bit higher than most would like to see, but it makes the most sense for a launch price though, that way it can eventually be reduced to $449 & $399 and still be priced well above the $249 One S.
That being said, Microsoft would do way better in the long run pricing it at $399 and simply not doing any price reductions for the first 1-2 years. They'd sell way more units and gain momentum early on with the $399 pricing than they would if they sold at $499.