tp we are talking about games from 30 years ago meant to run on old CRT, if you really want to play it how it was intended go buy a top of the line sony CRT monitor but calibration will not do much with the amount of compression there was back then, if you have 8 bit colors your 32 bit screen is a bit wasted, isn't it?
i do agree with you that if you care about that on more modern games calibration is nice, and for content creators it is a must have, but for old games it is a waste of time, the same can be said of music, i pretty much always use monitor grade headphones (very flat response) with an equalizer to tailor my listening experience, the beauty is in the eyes of the beholder like some would say, some rather experience it their way