I have some massive holes in my listening experience. I hadn't heard Dark Side of The Moon until I was 48, only heard the White Album after it appeared on Spotify a few weeks back, never heard a Bob Dylan album, a Stones album or had anything other than superficial contact with any number of 'legends' including Bowie, Elton John, Stevie Wonder, The Eagles, The Band etc etc. There is more music out there that any one of us can consume. Our own journies are what make us 'us'. I have a truckload of obscure artists I have loved and soaked up over the years and have no real sense that I am missing out. My own perspective is that I cannot say that I 'don't like' Bowie, Elton John etc etc, it's more that I cannot listen to everything, so when I do, I go for stuff that I love rather than stuff that I like or think is OK. 'Life On Mars' is a great piece of music but I would never pick it up by chouce because I get to hear it every now and then as I go through life and, when the choice is mine, will go for things that work more for me. The 'choice' is not 'good' vs 'bad' but 'most loved' vs. 'that's nice'.