Has there ever been a generation that didn't say things like this as they grew older, usually accompanied by a heavy sigh?
Perhaps. But that's really up to the individual, isn't it? On the other hand, we also have access to a much wider spectrum of music today. It used to be that you were mostly limited to what was played on the radio or happened to be in stock in the record stores (mostly driven by a handful of big music labels). Today, we have access to a lot more older, niche and indie music, since the cost of publishing and distributing music has dropped by orders of magnitude.
It's ironic that we are in an age when we have access to more music than ever before, yet the music we create is poorer than has ever been, at least for the past 800 years or so.
We did things better when men focused single-mindedly on one thing.