Because it's the only thing out there that introduces me to new artists/music or reunites me with some artists that I haven't heard in a very long time for one reason or another.
Like Gill Landry, an artist who I had never really heard of before. But I was listening to a Tom Waits station that I had set up, and "Mexico" by Mr. Landry has popped up several times over the past few month. I dig.
Then there is Alice Donut, a band who I LOVED back in the early 1990's. I don't think I've heard anything by them since, well, the last time I mentioned them here on the Dude. But man...I still love some of their stuff. "Magdalene" is such a great song. If you were a fan of Jane's Addiction or Sonic Youth back in the day, then you may enjoy it as well. Dig times two.