Chair Love

This is the chair I covet!!! It's a Charles Eames Office Chair. Ahhh. The problem is it's really expensive. I can find a knock off but then my other dilemna is I haven't sat in one so I don't know how comfortable it is. Then I started looking at office chairs and I have found a few other possible options. I want it in either black or white.

This is really modern and I think comfort is my main concern here too.
This chair has a similar modern feel but looks like it would be more comfortable.