If you've got some old games or gaming equipment taking up space in your closet, eBay is offering select sellers an incentive to part with your unused gaming gear. Invited sellers who sell at least $50 worth of merchandise in eBay's Video Games & Consoles category during the promotion period will receive a $20 eBay bonus coupon. Items must be listed by October 25th to qualify, after which you have 30 days to sell a total of $50 worth of merchandise.