Monoprice via eBay offers its Monoprice Maker Select 3D Printer, model no. 113860, for $309.99 with free shipping. That's $39 under our January mention, $90 off list, and the lowest total price we could find. It features a single-extrusion print head, heated aluminum build plate, USB, MicroSD slot, and maximum build volume of 7.9" x 7.9" x 7.1".