Monoprice has the Dark Matter by Monoprice 120Hz 5120x1440 Dual QHD 32:9 49" Curved Gaming Monitor (40865/140865) on sale for $850 with free shipping. Thanks, Mike!

Monoprice is also currently selling it for the same price via third-party storefronts at Target (REDcard holders (sign up) still get an additional 5% off in cart), eBay, Walmart and Newegg.

5120 x 1440p (Dual QHD, 32:9), 120Hz refresh rate, AMD FreeSync, Quantum Dot

1800R curvature, VA panel, 400cd/m2 brightness, 2 x DisplayPort 1.4, 2 x HDMI 2.0