Part of the problem is (as has been pointed out) it's easy to create "home grown" recordings with the technology available (ProTools, etc.), but that doesn't mean the folks doing it have years of experience or even do it out of more than a necessity for getting their music out there. Many of you know I write CD/music reviews for Audioholics, and back in the day, most recordings/recording engineers did what they did for a living: 8 hours (or more) a day, 5 days (or more) a week. For example, while Steely Dan/Donald Fagen used to be the shining example of recording quality, Donald Fagen's last
CD was downright terrible (quality-wise, not music-wise). Having said that, there
are good examples of "home grown" recording efforts/studios that are excellent. For example, most Jeff Lorber
CDs fall under this category (and there have been more since that review).
I find it interesting that even as we see a decline in the quality of (2 channel) audio/music source material, we are seeing an increase in the quality of (multi-channel) movie source material. For example, the latest
Dolby Atmos demo will really knock your socks off, and that didn't even contain any clips from
Gravity!