CowBoom offers the used Sony PlayStation 3 Slim 120GB Console, model no. CECH-2001A, for $129.99. Coupon code "PS34011614" drops it to $89.99. With free shipping, that's $10 below our May mention and the lowest total price we've seen for this model. (It's also $90 under the lowest total price we could find for a refurbished one.)
Note: No warranty information is provided. Also, this used unit may have scratches or dents and/or be missing accessories, such as a controller.