These second hand systems are for sale at a fairly reasonable price, and come with a one-year warranty. Nintendo is charging $99.99 for a standalone refurbished DSi XL and $129.99 for a refurbished 3DS. Best Buy, who also sells used units, is currently priced at $10 less on both. GameStop is currently asking $109.99 for used DSi units and $159.99 for used 3DS consoles.
Apparently the systems may have “minor cosmetic blemishes,” but they’re guaranteed to be fully functional and have been “cleaned, tested, and inspected to meet Nintendo’s high standard.” You can get a Metallic Blue or Metallic Rose colored DSi XL (with an option to have Mario Kart DS installed for $30 extra) or an Aqua Blue or Midnight Purple 3DS (with an option to include Legend of Zelda: Ocarina of Time 3D for $40 extra).
Nintendo is essentially undercutting Gamestop with these prices, which is risky as they are one of the biggest retailers in America, and a great portion of their sales comes from selling used games and consoles. However, it’s important to note that Best Buy is still offering a better deal, at only $90 and $120 for both handhelds. It’ll be interesting to see how this affects Nintendo’s relationship with the retailer.