I've never really understood this argument. These are games that are meant to be played and enjoyed, unlike other collectibles like baseball cards where I would understand the rarity argument a little more. If a game is great, why wouldn't you want more people to have access to that game and be able to enjoy it? If you would like one again because it's a fun game with a theme you love, why does it matter how many of them there are?

I get that having a machine that no one else does would make you feel special, but is that the primary reason why you would want one? Enough so that even if you like the game you wouldn't buy one just because some shmo down the street has the same access to that game that you do?

If your argument is resale, I completely understand that having an expensive game devalued instantly when a remake is announced would suck. Most pinball machines retain a good amount of value though (look at what AF still goes for and there were a bazillion of those). Wouldn't you still be able to find buyers who prefer an original (although probably at a lower cost)?