Walmart offers the Acer 35" 21:9 UltraWide LED-Backlit LCD Monitor for $259.99 with free shipping. That's the lowest price we could find by $10, although most stores charge over $300. It features a 2560x1080 native resolution, 4ms response time, and DVI, HDMI, and DisplayPort inputs.
The dollar store is the most amazing place to find bargains for certain purchases. Yes, even pregnancy tests.