Walmart offers the Lifetime Classic Commercial Folding Chair 4-Pack in White for $71.34. Opt for in-store pickup to cut that to $68.56. (Amazon charges the same with free shipping.) That's the lowest price we could find for any color by $16. Each contoured chair measures 20" x 18" x 34" and features a powder-coated steel tube frame.

Update: The in-cart price at Walmart has now fallen to $65.89.