With me I want MP3 CDs. I do not have the changer. I have an aftermarket head unit that I switch a couple times a year from unit to unit for some reason. I personally do not like the iPod for my personal use. The DICE is a great product for iPod users and cannot be beat. If it came down to me choosing I would choose CDs.
Just my opinion
Oh and I can hear the iPod playing in terms of quality. There is a difference between iTunes download and the bought CD. It would seem to me they would have made them equal but it seems they did not.