Newegg offers the Acer B6 29" 21:9 UltraWide IPS LED-Backlit LCD Monitor, model no. B296CLbmiidprz, for $399.99 with free shipping. That's the lowest total price we could find by $121. It features a 2560x1080 native resolution, LED backlight, IPS panel, 8ms response time, 21:9 aspect ratio, built-in speakers, DisplayPort, and two HDMI ports.
Manufacturer Certified via eBay offers the refurbished Acer 27" 1080p LED-Backlit Widescreen LCD Monitor, model no. T272HLbmidz, for $369.99 with free shipping. That's $89 under the lowest total price we could find for a new unit. The monitor features a native resolution of 1920x1080 (1080p), DVI input, and more.