Maybe I'm going out on a limb here, but I think the CD ruined music. Bear with me. When CD's started coming out, record companies had to convince buyers to replace all of their albums, cassettes, etc, with the CD format. That brought along a whole wave of "greatest hits," "bonus tracks," and "two records in one (with at least a third of the songs omitted)" compilations.
Example: My G/F likes the Replacements, as do I. So she'll put in a Replacements CD, and it will start out with the first couple of songs from Hootenanny, or Tim, or whatever. Then it will switch to a different album. Sorry, but when I put on a record, I like to hear every song on that record, as it was arranged by the original artist.
Back to the IPOD/MP3 thing: I work with a kid (20), and the radio is always on at work. If a song comes on that I like, I'll ask, "hey do you know this band?" If he does, he always responds with, "yeah, I've got one of their songs." I doubt he owns more than 10 full CDs, and I think he is missing out on a bunch of good music.
BTW, our crappy band is putting out a 10-inch on vinyl, just so we'll have something recorded that nobody will ever have a chance to hear.
/end rant