Seasons greetings, Merry Christmas, Happy New Year and all that 
I'm in the UK and was looking around for a 4K monitor to use with my late 2014 Retina iMac as my original second screen bit the dust.
After some sniffing around I found this screen for £300
https://www.ebuyer.com/857252-acer-nitro-vg270k-27-4k-ips-monitor-um-hv0ee-010
Was amazed at the price..... 4K, IPS with HDMI 2.0 and DisplayPort. Found that it was £385 on amazon and £370 at Curry's, so thought I'd take a punt hoping it wasn't an incorrect listing and I'd receive a Full HD or QHD screen instead.
And wow, it's awesome. My iMac can run full 4K @ 60Hz over DisplayPort and it's a truly stunning display. A few bells and whistles I've not explored, but v impressed. Have it running at pseudo 2560x1440 Hi-DPI to match my iMac and from a normal distance it's damn close in quality. Bonus that it's 27" to match the iMac.
So if you want a reasonably priced display, take a look!
G
I'm in the UK and was looking around for a 4K monitor to use with my late 2014 Retina iMac as my original second screen bit the dust.
After some sniffing around I found this screen for £300
https://www.ebuyer.com/857252-acer-nitro-vg270k-27-4k-ips-monitor-um-hv0ee-010
Was amazed at the price..... 4K, IPS with HDMI 2.0 and DisplayPort. Found that it was £385 on amazon and £370 at Curry's, so thought I'd take a punt hoping it wasn't an incorrect listing and I'd receive a Full HD or QHD screen instead.
And wow, it's awesome. My iMac can run full 4K @ 60Hz over DisplayPort and it's a truly stunning display. A few bells and whistles I've not explored, but v impressed. Have it running at pseudo 2560x1440 Hi-DPI to match my iMac and from a normal distance it's damn close in quality. Bonus that it's 27" to match the iMac.
So if you want a reasonably priced display, take a look!
G