There is something to be said about using the original hardware. While I have no problem playing, say, a Zelda game to completion, a Mario game is another matter entirely. Even with a Switch with Switch Online membership, the latency that exists whether I'm using the attached controllers wirelessly, the Switch in handheld mode, or a third-party controller wired over USB, or wireless over Bluetooth, the latency is greater than it was on an actual NES. I just can't control Mario as tightly as I could on original hardware. You could chalk it up to my age (let's just say I played the NES when it was brand new), but there is a discernible latency that was not there with the original hardware, and even Nintendo themselves can't get rid of it. And that's if you pay them an annual fee.