That will not work, even if Zacuto would sell it 300 USD, there would never be as many EVF sold as playstations. Not until they make a VR head set of it with two higher resolution panels and head traking etc and sell it 300 USD .
But seriously, I see nothing wrong a high quality tool costing 2000 USD, I am only happy to see there is still companies making high quality tools. Of course if it would cost 300 USD, I would get it for sure, 2000 USD, 'it would be nice to have', does not really justify investing that much.