>>537880121
You can win some fake internet points on manifold for betting on price/release date/features:
https://manifold.markets/NathanaelRea/cost-of-the-next-valve-vr-headset-u
https://manifold.markets/Hiina/valve-deckard-vr-headset-release-da
https://manifold.markets/OlegEterevsky/when-will-valve-announce-a-standalo
https://manifold.markets/NathanaelRea/the-next-valve-vr-device-will-have

If you're unamerican you might be able to bet real money on polymarket I think. There aren't any existing deckard markets though, and dunno how hard it is to start up a new one.