I remember when I bought my first pair of IEMs. They were pretty cheap, but still better than whatever earbuds came with my iPod at the time. After listening to the new IEMs for a while I was unable to go back to the Apple ones because they sounded so much worse. If you asked me a few days prior, I would have told you the earbuds sounded fine.
Then I got a real pair of headphones...
Without optimum room design, even half-decent earbuds are better than pretty high-quality speaker systems, if you don't need multiple simultaneously listeners.
And I don't think it's that most people don't care, I think it's just that most people have a utility function where the additional utility of high-quality sound gear is far too low to ever be justified by the cost of the gear (and the necessary environmental improvements to make sure that the effect of the gear isn't wasted.)
Things really aren't made the way they used to be (for better or worse) and I think that nostalgia is definitely part of vinyl's appeal.