Today only, Groupon offers the Belkin AC1900 Dual-Band 802.11ac Wireless Router, model no. F9K1124, for $79.99 with free shipping. That's the lowest total price we could find by $10. It features wireless speeds of up to 600Mbps (plus 1.3Gbps), four Ethernet ports, USB 3.0 port, and data prioritization.
hhgregg offers the Belkin N150 Wireless Router, model no. F9K1001, for $11.95 with shipping starting around $6. (Shipping costs will vary by ZIP code.) That's the the lowest price we could find by $4. Features include speeds up to 150Mb/s and four LAN ports.