Amazon offers the LG 34" UltraWide 21:9 IPS LED-Backlit LCD Curved Monitor for $599.97 with free shipping. That's the lowest price we could find by $85. It features a 2560x1080 (1080p) 21:9 native resolution, nVidia G-Sync, 144Hz refresh rate, HDMI, and DisplayPort.

Note: It's expected to ship in one to three weeks.