That is understandable in the moment, it’s alot if the only pay off is one game. But I would argue it is very worth it overall. It’s a small price to pay to permanently be able to handle it and have no qualms about future VR games/uses.
Plus most games and experiences don’t even cause VR sickness to the most susceptible people, so if you pick and choose your games and stick to ones that don’t cause issues, you can play VR without any conditioning right away too.