The Desk Chair thread

Just getting the ball rolling here. Desk chairs are often discussed throughout the forum, so why not a central topic for it?

Herman Miller Aeron (~ $700-1200 ?)
http://en.wikipedia.org/wiki/Aeron_chair

Herman Miller Embody (~ $1600)
http://gizmodo.com/5071571/herman-miller...
http://www.hermanmiller.com/CDA/SSA/Prod...

Humanscale Liberty Chair (~ $800)
http://www.humanscale.com/products/liber...

Humanscale Freedom Chair (~ $850)
http://www.humanscale.com/products/freed...

Ikea Markus (~ $200)
http://www.ikea.com/us/en/catalog/produc...