I really don't get the argument that this high end sealed collecting isn't game collecting. I think that's such a generalization, and at the end of the day it comes down to each individual and their motives. Are some of the people dishing out this money not big game collectors and only doing it for investment? Sure, but I believe only a very small portion have zero interest in games! As a video game collector, in theory, I want the best possible copy of any given game. That just happens to be sealed, high grade games, same as I would chase a high grade '52 Mickey Mantle or Action 1 in sports cards and comics, respectively.
A lot of this "THAT ISN'T GAME COLLECTING" comes off as sour grapes to me, personally.