It's between you and the Lord. I stay away as I get more out of CCM in my daily fruits than I do out of secular music, but whatever you do, take it up with the lord. He directed me to mainly CCM, and that's all I really buy nowadays. I'll listen to it, but my money goes towards Christian music.
Now for those who say it's bad because of lyrics, is that something the Lord told you, or someone else told you and you believed them? Make sure it's the Lord giving you the instruction, not man. Corinthians 1 talks about not being bound by another mans conscience. Now, you can listen to their viewpoints and all, but make sure the Lord directs you in this direction.
Also, if someone gets you with if theres any doubt at all, stay away, think about what they say. Did you know that Pac Man turned a child into a drug addict? Did you know that letting Teenagers drive increases the chances they will die? I understand the logic in this argument, but I still find it flawed non the less. I think this calls for consideration of both viewpoints though.