Music and its popular trends always have been and always will be cyclical. My biggest complaint with the popular music of today is how much these artists are reliant upon the autotune gimmick for their vocals. It really has made every song seriously sound more or less the same.
I have nothing against any genre of music. I always felt a good song is a good song regardless of who sang it. That said, the music labels at large (Which basically seem to be no one but UMG, Sony, EMI and WB anymore) have totally lost all reality with how the business should work. They completely failed to adapt to the absolute 180 everyone did when the mp3 format took off. The only thing they noticed was people enjoy singles a lot these days, so they cookie cutter artists into quick oblivion looking for the fastest buck rather than taking the time to develop an artist and stick with them like the old days.
I will say that regardless of that, though, there are now more options at getting your music than there have ever been before. Not only is there iTunes, Amazon Mp3 and the like, but other online outlets like bandcamp, etc. that are tailor made to just anyone who wants to put some music out there. I would have loved to have that option when I was younger and had a band and we were making homemade tapes and just sort of handing them out to a few people.
But the majors need to stop relying on a dead business model and completely overhaul their thinking. Otherwise, music sales are just going to continue to drop.