I wouldn't say $430 is "cheap" for a 27-inch monitor, but it's definitely the lowest price I've seen for an OLED option like ...

Gigabyte M27QA ICE monitor is priced in India at Rs. 29,000. It is available in a single white colourway and can be purchased ...

This portable monitor features a 15.6-inch Full HD IPS display that delivers a great 1080P resolution and vibrant colors ...