There are companies that specialize in buying up office furniture being liquidated. They buy it at a discount and sell it to the next company.

The thing is that sometimes they have leftovers that they can't really sell to another company and these will often be very cheap. I bought a used Steelcase Leap from one of these places that operated out of a nearby warehouse. A new Leap sells for $1000+. It was in near perfect condition, but it was a different color then the rest of the Leaps that they had, so no one buying in bulk was likely to purchase it. I bought it for about $200. They even steam cleaned it for free before I picked it up.