Re: What's The Point?
Convenience, and accuracy. I dug out my old MSX and soldered up a cable to connect a proper tape player (lost the data recorder). First problem : 'mono' is supposed to be the left channel, but one game tape had recorded it on the right.. Then, Manic Miner loaded It looks as I remembered it, it played as I remembered it, the sound - the sound was appalling. The load time, five minutes of waiting. Probably easier to run in an emulator.
Likewise, I have a retro gaming PC - it has an S3 Savage 4 (accurate DOS scrolling), a Soundblaster AWE32, and two different Roland music modules. Running games with the proper Roland music and responsiveness of the original system is better than running it in DOSBox, but a lot more difficult. In that case it's worth making the effort, at least for me.
Take Commander Keen 4, though, and I can't tell the difference between the real thing, and DOSBox emulation. Eventually it won't be worth using the original hardware, plus emulators can save state, useful with difficult games.