ChainsawAsh said:
I understand your argument, but as a preservationist, I can't accept it - that's like saying that old effects should be updated to meet current technological standards because it's ugly in comparison to what we see now. While there are those who would argue for that, the concept horrifies me.

I don't see that as the same argument at all. Old effects, ugly or not, were deliberately added. The directors didn't have a choice of whether the grain was there or not. If grain were deliberately added by the filmmakers, then I would be against removing it, because its presence was a conscious choice. However, with natural grain, there was no choice. Yes, they could choose between different film stocks for variations in the grain level, but they didn't have the opportunity to buy No Grain Film Stock (C).