Costco offers its members the Dell UltraSharp U2713HM 27" LED-Backlit IPS LCD Monitor, model no. CVN85, for $649.99 with free shipping. (Non-members pay $32.50 more.) That's the lowest total price we could find by $90. Sales tax is added where applicable. Features include a native resolution of 2560x1440, LED backlight, 4-port USB 3.0 hub, and DisplayPort, HDMI, DVI, and VGA inputs.