Meritline offers the refurbished Logitech G600 USB Wired MMO Gaming Mouse in Black, model no. 910-002864, for $39.99. Coupon code "MLCKY18XNL1" cuts the price to $29.99. With free shipping, that's $10 below our January mention of a new model and the lowest total price we could find by $13. The mouse features 20 buttons, 8200 dpi, customizable lighting effects and colors, and tilt wheel. Coupon expires after 100 uses.
A 90-day warranty applies, but it's unclear who backs it.