I think he means a 4k monitor AND a 1080 144hz monitor AND have change left over 
Even if this is the only 1440 144hz monitor on the market, its overpriced purely on the $800 price tag the yanks are paying. £1 = $1.70c, $800 does not = £669/719 how ever you want to dress it up with taxes etc...

Even if this is the only 1440 144hz monitor on the market, its overpriced purely on the $800 price tag the yanks are paying. £1 = $1.70c, $800 does not = £669/719 how ever you want to dress it up with taxes etc...