Introducing StandDesk

I'm in the market for something like this.

Seeing him go to all the effort of building an adjustable table and then just using a laptop on it, rather than add a separate keyboard and/or monitor, seems kind of weird.

Doubly so since in my research I've found plenty of stands that will support a laptop and that can be easily adjusted up and down. If you don't use a seperate screen and keyboard, then the adjustable desk seems entirely unecessary.

How is it raised?