>>288335859
Depends on what the new HP headset is like, there's practically no information on it at the moment. The Rift S is a brilliant headset for the money. In any case I'd expect more information on the HP headset within two months so just keep an ear out and decide when there's more information out there.
You shouldn't be getting a headset just to watch videos though, VR isn't well suited for that yet.