I don't think this logic makes much sense. I can see how this won't appeal to all NES fans, but I'm approaching this from a "Oh my gosh...this is such a cool thing to do with LEGO" mindset. I could buy an NES, I guess. But I have little desire to play any of those games. I don't really get why it would be one or the other, I guess is what I'm trying to say.
As for investing, I'm not going to bother. Above the price point I dabble in for that and I don't like dealing with quick flipping.
Edit: maybe this a really good set for fairweather NES fans, like me?! Is that what it is?