This deal has ended.
This pre-owned Insignia Portable DVD Player is $29.99 at CowBoom, and shipping is free. That's $110 lower than the lowest price for a new player, and its the lowest price on a used one by $17. It has 2 headphone jacks, a 10" LCD screen, and a width of less than 2". The site allows you to look for the player in the best condition - it rates used items on a 1-10 scale. Sales tax is charged in most states.