The other problem is that cheap chairs will often feel pretty good when you first sit in them. But because they're made with cheap, low-density foam, they quic

The other problem is that cheap chairs will often feel pretty good when you first sit in them. But because they're made with cheap, low-density foam, they quickly pancake, and lose any semblance of comfort and ergonomics they might have had. I used to do the $100 chair every year or two thing too. Then I bought a Steelcase Leap (for considerably more than $100), and while it's only been a year or so, it looks and feels as good as when I bought it. I would have loved to have found one for $200-300, but even buying new it was well worth it.