Nice specs. I wonder why they don't offer 1x16G (instead of 2x8G) or 1x32G (instead of 2x16G) RAM options though - that would leave the other slot free for a future upgrade.
As far as I know, having two equivalent RAM sticks for dual channel mode helps performance, so most people choose that over having single stick, which is often frowned upon in the desktop space, at least.