Oh, nostalgia has always been around, and always will be. Remakes and sequels have been an unfortunate thing for decades as well.
The thing is that it wasn't until the 2010s that nostalgia, in of itself, became a brand of some sorts. In the 2010s, nostalgia went from "Hey, remember that cool thing from back in the day? Fun times" to "I'm so emotional because the movie made a reference with a Nestle's Crunch Bar!" Hopefully my distinction makes sense?
In the latest Half in the Bag episode, I disagreed with some of the points that the dudes made in their discussion in regards to the film itself ... But I certainly agreed with some as well. Additionally, I wholeheartedly agreed with their assessment that people have turned their nostalgia into a full-blown personality trait.
I can't blame people too much, the 21st century has turned out to be something of a nightmare, people's nostalgia is also longing for better times when things didn't seem to be falling apart.
It also has to be said that for as much as I'm nostalgic for them, a lot of 2000s culture was stupid as shit, think movies like Stealth, I struggle to think of even a single summer blockbuster type movie from that decade not based on an older property (ie not Pirates of The Caribbean or The Dark Knight or Spider-Man and The Lord of The Rings movies came out in December) that was truly great, maybe Spielberg's A.I. and Minority Report and if you count 2010 as part of the decade, Inception.
Michael Bay's movies were shit, Roland Emmerich's movies were shit, it was an overall embarrassing time for movies like that, it's no wonder there was an effort to try to nurse things back to health and revive what was cool from the past, we took a wrong turn politically though, somewhere out though is an alternate dimension where the 2010s was the decade of our dreams and all the revivals were as good as Mad Max: Fury Road, there was a strong desire with everything to get things back on course.
In regards to "nostalgic properties," the only properties that I can think of that still remain untarnished in my eyes are the Rocky movies and the Karate Kid. I think that the Creed movies are the gold standard with re-starting a franchise by creating new and compelling characters while also respecting the hell out of the movies that came before it without appearing maudlin. And, so far, I can happily say the same about Cobra Kai.
Back To The Future is the biggest one that has remained untouched, we got 3 movies that told a complete story with a satisfying ending and boom, we were done.
There's also standalone movies that have avoided getting sequels like The Goonies, E.T. and Who Framed Roger Rabbit despite some talk of ones for some of them.
I do kind of wonder what a Goonies sequel might have been like, but I feel like with the passing of Richard Donner that ship has sailed, a Goonies sequel should have happened no later than 2015.