eTechDirect offers the refurbished Netgear 802.11n RangeMax Wireless 4-Port Router, model no. WPN824N-100NAR, for $14.99 with free shipping. That's the lowest total price we could find by $2. (It's also the best price we've seen for any Netgear Rangemax Router, outside of a deal from last summer that offered one for free with a Project BISMark signup.) It purports to provide up to 500,000 square feet of uninterrupted coverage.

A warranty is not included.