People have posted good price stuff on here before:

http://www.walmart.ca/en/ip/dell-27-2560-x-1440-led-ips-monitor/6000189477880

750$ monitor for 250$ ! pricing error? you tell me!
Like the lenovo portable  someone posted here a while back,
if it is a pricing error, I assume they will not fulfil,
but I have ordered a couple any way, see what happens.

-tl