Office Depot offers the Realspace Venn High-Back Vinyl Chair in Black, model no. BT-9230, for $64.99. Coupon code "74371560" cuts it to $54.99. With free shipping, that's $70 off list and the lowest total price we could find for this chair, although we saw it for $5 less in June. It features seat-height adjustment, tilt lock, and tilt tension adjustment.