I've watched some here and there, but having to try to catch them when they stream has put me too much in the mind of old tv and catching shows when they air. Watching the recording afterward is maybe good for some white noise, but it's clearly not the intended experience I think.
I'm not going to buy a console for just one game. If I really want to play that game, and it's been years, and it still hasn't come out on pc, and I can't get the goddamn emulator to work, well, I'll watch a streamer play it.
The difference that I was thinking of was of recorded videos vs. live streams, where with the former you can watch whenever instead of only when the person is streaming.