If you're like me, you're using your CDs as a storage device and listening to you music in MP3 form, often in shuffle play or playlists.
If you're like me, you've also learned over time that there are songs on albums that just don't do it for you.
So, why would you want that stuff to come up in shuffle play? And why should it take up your hard drive space?
I use iTunes ratings to mark things that might be destined for removal with just 2 stars. Second time they come up and they just ain't it and I can't think of the last time where I was in the mood when they would be right, I set them down to 1 star. Third time, they hit the trash. Remove from iTunes and hard drive.
Make room for new good stuff!