VR accessories worth it or just scams?

So, got my headset a while ago, been having fun. But now I'm seeing all these "must-have" accessories – custom grips, fancy head straps, haptic vests, foot trackers for total immersion whatever. Half of it looks like snake oil. Is any of that stuff *actually* a game-changer or just more junk to drain our wallets? Like, I'm trying to escape reality, not create a second, more expensive one lol. What's actually good?