If you were born after the '60s, '70s and early '80s, you really missed out on some great music and performers.
Thankfully we still have them on audiotape and video like this.
There is still good music being made, but that stretch of time was so dense in good music, even the crap was listenable. I'm still discovering bands and songs I never heard of from that time.
I do think that time does have a strange way of improving music, though. I was in the store and Justin Timberlake's "Rock Your Body" (i.e. the song that was at the center of Janet Jackson's national boob flash) came on. I never cared for that song when it came out. Now, I take a listen and start to get a real appreciation for the Chic-like retro-funk vibe he incorporated into it.
Which, of course, means there's hope for Nickelback yet. (OK, I won't go that far. There was a point around 2000—it started a little with 90s grunge but it really exploded in the 2000s—when a flood of really crappy music that will probably stay crap forever came out.)