It took me a while to figure it out, but I finally came up with the reasons why I soured so much on Contemporary Christian Music over the years. (Mark, I know you're going to take me to task on some of these, but bear with me - this is from the perspective of the fan, not the insider...)

1.    The music can be very repetitive. How many times can you realistically sing, "Hallelujah, Praise the Lord" before it gets old? And do you know how hard it is to try to track down a CCM song title? Go ahead: type in "Praise The Lord" in iTunes (at least 150 songs) or "Praise the Lord song" in Google (826,000 hits). Of course, as Chris Tomlin points out, "How can I ever say enough?" But still - wouldn't some originality go a long way? Speaking of which...
2.    There is a great deal of "copycat" music. This happens both internally (see "The Altar And The Door" by Casting Crowns; Mark Hall basically admitted that the song came out of a line from "Caught in the Middle") and externally (any group that "sounds" like a current secular music artist). When you can't tell whether you're listening to Three Doors Down or Seventh Day Slumber, you know you have a problem. This comes out as a result of people constantly trying to compare Christian artists to secular ones. Francesca Battistelli would probably be considered the Christian Jordan Sparks or Miley Cyrus.
3.    After a while, it stops being about the music and the message and starts being about the artist. "It's the singer, not the song," according to Roger Daltrey and the Who – and they're right. This can be a huge tripping point for many Christian artists (see White Heart and Amy Grant). To a lesser extreme, it has caused many groups to split up after having a vibrant ministry. I remember Russ Taff leaving the Imperials, and Greg Volz leaving Petra. The temptations of this world can be immense for many; it's twice as bad for Christians because we know better.
4.    Artists that either cannot provide a bible verse alongside every song in their repertoire, or do not have an altar call after their concerts, are perceived as "not doing the Lord's work." Is it horrible that not every song of praise has to be based on a verse of Scripture? Or is it written somewhere that we have to hear the Sinner's Prayer at the end of every concert of praise music? I know that Steve Taylor got a great deal of heat for this with his music. Chris Rice has my admiration in this category, because not all of his music is out of the Bible. Witness "Me and Becky" from his album, Run the Earth Watch the Sky. Of course, I'm a bit out of touch when it comes to concerts, so perhaps the post-concert altar call is a thing of the past.
5.    Innovation is greatly discouraged among Christian artists. This has been true since the days of Larry Norman and the Young Lions; it's still true today with U2. Try to go off in a direction that isn't "kosher" and people are all over you. I didn't actually notice this until recently, but tobyMac actually had a word in his latest single, "Lose My Soul", changed for radio airplay - an absolute shocker among Christian artists! It wasn't until after I had purchased the song on iTunes that I noticed the word "You a punk?" (in the radio edit) was actually sung as "You a pimp?" in the full-length version. Maybe it's my years of being a Juvenile CO, but the latter makes more sense in context. Alas, putting a song that actually uses street language out there for Christian consumption doesn't work, I guess.

Of all five of these, the last two are the ones I still have a big problem with concerning CCM today. After listening to enough secular music over the last dozen years, I learned the hard way that copycat music isn't exclusive to the Christian music industry. But why is it that Christian artists can't "push the envelope", so to speak, in order to either win some, or to be accepted by more people? It seems to have worked (to some extent) for Switchfoot. And I don't think they did it by whacking people over the head with Bible verses after the lyrics of their songs.

Don't get me wrong, now; the music of artists like Chris Tomlin and Casting Crowns have really touched me and filled my soul with joy; it's just that it'd be nice to see and hear some original stuff - some stuff that pushes the envelope, a little bit like Norman did back in the '60's, when no one was playing Christian rock music.

My $0.02 worth. Your mileage may vary.