You're likely coming at it from the angle of already having a powerful gaming PC. A lot of people buy them hoping to end-run around that. The Quest can let you

You're likely coming at it from the angle of already having a powerful gaming PC. A lot of people buy them hoping to end-run around that. The Quest can let you do that, but the promise turns out rather empty when people find out VRChat is much less capable without a PC. The other obstacle is full body tracking. Turns out this just works much better if you have lighthouses to begin with, plus a headset that uses them.