Re: Why am I listening to this?...discoveries
I felt that way about Tool. I was on board since Undertow. I just liked the heavy groove on Prison Sex, Sober, etc. Just liked listening to it. Then, Aenima, then Lateralus, then 10,000 days. I even saw them live in 2002 and the most notable thing was the fact that Maynard never faced the crowd.
Then I saw them in May 07 and was blown away. I listened to all of Tool's stuff but never heard any of it. Since that show, I revisited every track on every album and have a new appreciation for the intricacies of the arrangements and the incredibly interesting lyrics - which range from silly (Hooker With a Penis), poignant (Right In Two), and even blasphemous (Eulogy). But they move me. All of it. I now hold Tool in the highest regards. They went from a band that I liked listening to and are now a band that I borderline venerate. It just took some time.
It's funny you mention slipknot, because I like Duality and Before I Forget but am about to get my first slipknot albums on iTunes. So, at 32, I am kinda in the same boat.
for my drums
"No one has bought his last drum."