Sometimes I use Nostalgia to defend my opinion about certain games or systems that i see being under apreciated. Like saying "Yes, Sega Saturn was better than PS1, because *input games*". Not just but also to put that system or game in the talk.
About my Nostalgia's strenght. I's good until i get alzheimer i think (not soon i hope).
I also prefer MM to OoT. But nowdays i can't replay neither. I don't have the feeling of greatness that most of people have about both. :/