Walmart offers the Mainstays Vinyl and Mesh Task Chair in several colors (Gray pictured) for $34.88. Pad your order over $35 to bag free shipping; otherwise, shipping adds $5.99. (In-store pickup is also available.) That's the lowest price we could find by $7. It features 1-touch pneumatic height adjustment.
With these companies, it might be easier than you think to negotiate your monthly bill down.