Did a quick search and next cheapest was $479 + Shipping from Bing Lee back in 2016.
NOTE:
IS A TN PANEL (NOT IPS OR VA)(viewing angles will suffer, not as true colour reproduction, better response times though)
Overview:
Discover the detail of stunningly UHD picture quality with the Samsung 28” UHD 4K LED Monitor that offers PC viewing, gaming and more.
28” UHD 4K LED display
3840 × 2160 pixels
Flicker-free technology
AMD FreeSync
1x DisplayPort and 2x HDMI ports
Specs:
Dimensions With Stand: 660.9 x 468.5 x 187.1mm |Without Stand: 660.9 × 381.3 × 73.5mm
Weight With Stand: 5.28kg |Without Stand: 4.71kg
Display
Brightness Typical: 370|Minimum: 310cd/m²
Colour Support 1.07B
Contrast Ratio Typical: 1000:1, Minimum: 700:1|Dynamic: Mega - DCR
Pixel/Dot Pitch 0.16 x 0.16mm
Refresh Rate 60HzHz
Resolution 3840 x 2160
Response Time 1 (GTG)ms
Screen Size 28"
Size 620.93 x 341.28mm"
Viewing Angle Horizontal: 170 degree|Vertical: 160 degree
Features
Flicker-free Yes
Game Mode Yes
General
Colour Black & Metallic Silver
Panel Type Twisted Nematic
Tilt Angle -2 degree(±2) to +20 degree (±2)°
Wall Mountable 75 x 75mm (VESA)
Inputs/ Outputs
DisplayPort 1x
Headphone Jack 1x
Outputs
HDMI 2x
I believe it's $371.15 Delivered Here with "PERIPHERAL"?