The Stamina Gyrotonic Transformer 1500, model no. 55-6150, costs $299.99 at Overstock.com. Add it to your cart and it drops to $278.99. With $2.95 for shipping, that's the lowest total price we could find. Features include over 70 possible exercises, optional sports-specific exercise attachments (not included), removable back rest, and more. Deal ends August 31.