I was poking around the interweb and found the "Niner WFO 9 4-Star X01 Complete Mountain Bike" in stock in size Medium at backcountry.com for $4249.

It looks like niner is finally working their way through their mfg backlog but unfortunately I already bought another bike. This is a great bike at a great price, I hope some folks here buy a few and report back!

Niner WFO 9 4-Star X01 Complete Mountain Bike - 2014 | Backcountry.com