mwave offers the Powerlink 802.11n Wireless 4-Port Router, model no. PL-APN, for $47.99. With about $9 for shipping, that's the lowest total price we could find by $7. (It was $9 less a week ago, since expired.) Claiming an operating distance of up to 2,000 meters — yep, that's 1.24 miles — it features a maximum speed of 300Mbps, 5dBi dipole antennas, and support for WEP and WPA2 encryption.