I got an Index for cheap last year and was very excited to play a number of my favorite games with optional VR mode. Turns out:

1. the Index ecosystem is more accessible than expected. 2) the games I was looking forward to all played like ass and made VR seem like a stupid gimmick. 3) In a desperate move that felt like sunk cost fallacy, I tried several VR-only games, and got TOTALLY hooked on modded Beatsaber. This itself made the buy-in worth it.