As one of its daily deals, CowBoom offers the used Microsoft Xbox 360 4GB Slim Console, model no. RKB-00001, for $79.99 plus $5 for shipping. That's $65 under our mention of a new unit from May and the second-best price we've seen for this console. (We saw a used unit for $9 less in March. It's also $96 under the best price we could find for a new unit.) Features include 4GB internal memory, and composite A/V cable. The wireless controller, pictured, is not included. Deal ends today.
Note: No warranty information is available (a product protection plan is offered for additional cost). This used unit may be missing parts or accessories and have dents, scratches, or other cosmetic blemishes.