Lots of opinions here, must say mine has "mellowed" over the last few years about such curcumstance. The amount of money you have only dictates what kind of games you can play, the sale game of such cars is obviously out of most of our reach. But, to some it is fun and rewarding I guess.
Just suppose: To some older folk here, go back about 25 years ago maintaing your "elevation" in life as it was to this point. What would you do? ie: Your grandfather passes away and you inherit his 71 blue/blue hemi Cuda vert with very low miles. You drive it a couple times but store it out of respect for what it is and who gave it to you. Twenty five years later, you are offered say 2.4 million dollars for the car...................ya sellin or keepin ?
Me ? I'm keepin....................but I'm just an old fool that loves Mopars but granpa even more. BTW, no I don't have one
But honestly, I'd keep the memory.