Are there any albums you consider perfect?

My daughter gave me an ipod for my birthday and I have been loading music to it slowly. As a perxon who listens to albums start to finish I have been loading albums I consider high quality beginning to end.
Makes me wonder how many perfect albums there are out there. Steely Dan's "Pretzel Logic" is to me perfect. What I mean by perfect is not one sound needs to be added or subtracted to make it better. Funny thing is, "Pretzel Logic" is not my favorite Steely Dan album, but its sound is perfect. I can only come up with a few.
Pink Floyd, "Wish You Were Here"
Tears For Fears, "Songs From The Big Chair"