Amazon has The LG 27GN950-B UltraGear Gaming Monitor (https://www.amazon.com/dp/B08BCRYS6B?tag=quackdeals-20), a 27" Nano IPS display with a blazing-fast 1ms response time and 144Hz refresh rate, is on sale for just $500 (originally $800, free shipping).
(https://m.media-amazon.com/images/I/81fdHiIG1dL._AC_SL1500_.jpg)