Gamers worldwide spent at least 1.5 billion Euros in the last 6 months on new PC gaming gear. The success of eSports and growing push for mixed reality and VR headsets are expected to generate even higher numbers for the rest of 2017.
https://www.notebookcheck.net/Gaming-monitors-have-become-the-fastest-growing-PC-accessory-as-of-H1-2017.246342.0.html