It's always difficult to decide whenever a hardware upgrade will improve the flightsim performance as expected. Since I moved to VR my old Nvidia 1070 had some troubles when flying in clouds or very bad weather.
I have read many reports about the 2080 series. Some reported better performance other the same. We "simmers" are stuck with still an old platform but since VR will be a big part of mine simming I decided to upgrade to a Asus RTX2080Ti 11GB.
For some people it perhaps don't make any sense to have a Cockpit setup and use VR at the same time !
But for me it does !
Spending many hours in the cockpit you know more or less where all the knobs and switches are placed. When you are having your VR glasses on I just reach out to the switch or knob and moves it. In the VR cockpit you can see the switch move as you move the real one. The most common ones are those on the MCP, EFIS Throttle and so on.