Why are some gamers today still blinded by nostalgia?

Don't get me wrong, the best memories I had of gaming was back when I was a little kid playing the N64. I get how we look back at those happy memories and are fooled into believing it was because games back then was better, but I'm an idiot. I realize that gaming today is MUCH better in nearly every aspect if not, all when it comes to technology, options, and gameplay. I'm not trying to imply (for example) CoD is better than a classic like Ocarina of Time. However there's still people out there that just won't admit it, and I find it SO frustrating when some fans constantly complain how games today suck, and they wish certain series would go back COMPLETELY to the way they were. Why do they think these older games would succeed into today's generation of gaming? WHY DAMMIT? Are they really that blind by nostalgia to use a bit of common sense? EDIT: Didn't realize so many people on bnet still considers the older gaming generation better, but hey, if you care to explain, I'll try and comprehend.