Every night, Manhattan's sidewalks are lined with garbage waiting for pick-up. The most common piece of furniture you'll see curbside are adjustable office chairs, the cheapie kind you get at a Staples or an Office Maxx for $100 or less. (This isn't limited to my neighborhood; I overheard Jimmy DiResta, who lives further east, say he sees the same and often harvests the gas shocks from them.)
One thing I've never seen is an Aeron or a Steelcase Gesture sitting by the curb. If you buy one of those, you're keeping it for life, or selling it if you no longer need it. They retain their function and value, and cost closer to $1,000 than $100.
Which begs the question: Is it possible to create an enduring office chair with sophisticated ergonomic mechanisms at Staples/Office Maxx prices? The cynic in me thinks it is not. But one company is trying—and intriguingly, it's a robotics company.