I would explain it, but you know, why bother? It's the 90's and everything since the 90's. So three decades. Put as simply as possible: nostalgia became a commodity. These songs/videos, for me at least, represent the final gasp before the zombie apocalypse hit.
why do you feel the 90s is different from any other decade when it comes to nostalgia?
lol you weren't even born for these videos.
Nucleus is doing Stolen Valor.