Newegg offers the Acer Predator XB271HU 27" 144Hz LED-Backlit LCD WQHD Gaming Monitor for $599.99 with free shipping. (Micro Center charges the same via in-store pickup.) That's tied with our mention from June and the lowest price we could find by today by $12. Features include:
  • 2560x1440 native resolution
  • Nvidia G-Sync technology
  • 144Hz refresh rate
  • 1,000:1 contrast ratio
  • four USB 3.0 ports, HDMI, and DisplayPort