I think E2 boxes are still fairly common (probably more so with the old school users) . All my friends use E2, but I think most people now don't understand E2 and are told they are no good for IPTV etc ,and just get Android. I have never get any issues with my E2 boxes and they run everything no problem as long as you get an up to date box .Most people said E2 was dead when card sharing went and look how many years ago that has been. As long as you still have developers updating their firmware it will continue. But who knows what the future will bring.