BuyDig offers the refurbished Sony 55-300mm DT f/4.5-5.6 SAM Telephoto Zoom Lens, model no. SAL55300, for $169 with free shipping. That's $129 below the best price we could find for this lens new. It features ED glass and image stabilization.

A 1-year warranty applies, although it's not clear who backs it.

Update: Coupon code "EMSAL55300" knocks it to $149.