Amazon offers the Gamdias Erebos Laser Moba Gaming Mouse, model no. GMS7510, for $44.99. Clip the $20 off coupon on the product page to cut the price to $24.99. With free shipping, that's a $16 drop from five days ago and the lowest total price we've seen. (It's a current low by $20.) It features a weight tuning system, seven programmable buttons, and 8,200dpi.