Toys"R"Us offers the Air Hogs Star Wars Remote Control X-Wing Starfighter Remote Control Vehicle, model no. 20070685-6026782, for $39.99 with free shipping. (Amazon charges the same with free shipping for Prime members.) That's the lowest total price we could find by $6, outside of the mention below, although we saw it for $3 less last November. It's for indoor use only and comes with a sheet of glow-in-the-dark wall clings. Six AAA batteries are required, but not included.
A close price: Walmart charges a few cents more with in-store pickup.