What was is about the 80s/early 90s that was so special?.

It just seems...things were simpler, people seemed happier, stuff was just enough to grab your attention, but not enough to overwhelm it. Cool themed cereal, TV specials that aired yearly, Sesame Street still had stuff that could entertain older viewers. As much as people talk about how great the 90s were, as the they went on, people seemed to....not be happy?. It could be my nostalgia, but is there any truth to this?.