Er... this thread is entitled, 'Share Your Thoughts about Onboard Audio".
Cassette decks and vinyl records are fine for their respective eras. But today is the era of even better technology when you can practically get a lowly Realtek HD Audio codec that blows any cassette deck or vinyl record (or even CDs) out of the water. That's why I love it despite better options being available, at much higher cost, of course.
I remember my car back in 2000 having a cassette slot. Never used it once. Not once. I cleared out my cassette collection a long time ago. They just don't make sense when I can simply burn my MP3s to a CD and enjoy consistent sound quality without the cassette tape's inherent wear and tear (and hence degrading sound quality) through continuous use, not to mention being able to easily and quickly jump to the track I want to listen to. You guys remember what a chore it was to rewind or forward a cassette tape is to find your music? There were models that can search the track for you automatically but everytime you wanna jump tracks it just seemed like forever until your track was found. CDs changed all that (vinyl could too, but WTH). I can't think of a better revolution in the history of home audio.
And I can't think of a better piece of PC audio technology than Intel's onboard audio specs, AC'97 and now HD Audio. Suddenly, everyone has access to quality, digital, high definition PC audio.
As you get older, you don't lose your friends.. you just find out who the real ones are.