Costco offers its members the Dell 27" 1440p HDR Ultra-Thin IPS LED LCD Display for $374.99 with free shipping. (Non-members pay a $22.50 surcharge.) That's $62 under our mention from two weeks ago and the lowest price we've seen. (It's the best deal today by $155.) This 6.9mm-thick monitor features a 2560x1440 native resolution and USB-C and HDMI inputs. Deal ends February 23.