Both those options (having the original game + console or just emulating) sound better to me than having to pay almost 50€ for what's basically the same game all over again, just with different visuals and half the framerate.
As an alternative for more casual players, maybe Nintendo could offer those games for way cheaper without the new coat of paint. Remember the virtual console? Something like that would be the better solution for the consumer, imo.
Edit: "shady second hand market"? Come on man, you make it sound like buying a GameCube is more dangerous than dealing with drug dealers lol. I got a PS2 a year ago for just 50€ without even having to leave the house, so if you want to play older games the legit way, you can, easily.