Newegg offers the Corsair Flash Voyager 256GB Slider X1 USB 3.0 Flash Drive, model no. CMFSL3X1-256GB, for $66.99 with free shipping. That's the lowest total price we could find by $5, outside of the mention below. It features read speeds of 130MB/s.

A close price: Amazon charges $67.85 with free shipping.