Medium-sized 4K monitors are finally becoming a bit more affordable, dipping below £300 (around $400, AU$520), a price point that makes them competitive, between 25-inches and 30-inches, with ultra-wide 21:9 monitors.The AOC U2879VF is the UK's cheapest 4K 28-inch monitor at the time of writing with a price of less than £270 (around $360, AU$470) at...