I sort of agree....but only to the extent that popular music, as in top 40, is atrocious by and large. But even there, I'll occasionally hear something that I really like. And really...it's not much different than how pop radio has sucked for 30 years or something.
Like it's been said though, there are so many avenues out there at this point to discover new music that if you're dissatisfied, you're almost certainly not looking very hard, and/or your assessment is based on emotion or associations/personal experiences. Meaning, that maybe you over-value music from a particular time in your life based on positive associations with that music/time.
My advice, bookmark a few music blogs and take a listen to music they recommend. You might be surprised. Pitchfork is a nice springboard, even if the reviews themselves lean towards verbosity/pretentiousness, I've found a lot of amazing albums/tracks/artists through that site. They've started in the last few years to be way less insular and "snobby" in terms of what they're willing to review/cover. Check it out if you haven't http://pitchfork.com
I also really enjoy this guy's youtube channel, I think his name is Anthony Fantano and the channel is called theneedledrop. He reviews all sorts of shit, and is good about taking suggestions from followers. He can be slightly obnoxious-ish at times, but all things considered, I think he does a nice job. Here you go with that link: http://www.youtube.com/user/theneedledrop
Shit man.....having to digitally dig in the crates for great music is literally half the fun in my eyes. Very few things bring me more pleasure than hearing something I've never heard before and falling in love with it.