I'd like to own the DWR Eames Aluminum desk chair. It's a beautiful design that I can appreciate. Comfortable to sit on. The Aluminium arms feel like luxury.
Manufacturer Herman Miller must be actively protecting the patent on these chairs, because the knock-offs have obvious differences from the original.
EQ3 is selling this copy for $349. It's the closest knock-off I've seen.
Personally, I like the Herman Miller version so much that I'd pay the $1000+ to buy the real thing.