Office Depot and Office Max offers the Realspace Eaton Mid-Back Bonded Leather Chair in Black or Tan for $79.99. Coupon code "90067267" cuts it to $69.99. With free shipping, that's $80 off and the lowest total price we've seen this year. It features adjustable seat height and tilt.
Note that availability will vary by location, regardless of whether you choose pickup or shipping.