eBay with BuyDig has the LG 34" UltraGear WQHD OLED Curved Gaming Monitor for $725 - 20% off with coupon code CYBERWEEK20 [Exp 12/1] = $580 with free shipping. 

• 3440x1440 resolution, 240Hz refresh rate, 0.03ms response time
• 250 nits brightness 2x HDMI, DisplayPort, USB Type-C 65W PD