>>344073025
you generally want to go for price per storage unit, and 1TB or 2TB ssds look to be the top of the curve at the moment
https://diskprices.com/?locale=us&condition=new,used&units=gb&disk_types=internal_ssd,m2_ssd,m2_nvme

for VR games in particular, a few are really big like Alyx (~60 GB), and pavlov workshop maps can be really huge, but most other games worth playing are in the 2-5GB range, so 500 should be fine.