eBay with Acer has the certified refurbished Acer Nitro 27" WQHD 180Hz Gaming IPS Monitor (XV271U M3bmiiprx; ‎UM.HX1AA.301) on sale for $151 - 20% off with coupon code LABORDAYOFF [Exp 9/2] = $121 with free shipping. Includes 2-year Allstate warranty. 

• 27" IPS Panel (2560 x 1440), 180Hz Refresh Rate (DP), 0.5ms Response Time
• AMD FreeSync Premium, 1 x Display Port 1.2, 2 x HDMI 2.0, VESA 100 x 100mm