With anything tech related, manufacturers are always striving to give you the very best product and Dell thinks that the UP3218K ticks that box. With production focussed tasks bigger than ever and GPUs catered specifically for 8K gaming like the RTX 3090, you're going to need a monitor to utilise it but is it worth that hefty price tag?
While it's cool 4k is barely starting to get a bit more adopted so I think 8k is still something to look forward to 5-6 years from now!