I'm going to stick my neck out a little here.
I love concept albums, before we start. Whilst I spend a ton of time listening to rap and all that, I spend a ton of time listening to a ton of progressive metal, death metal, etc, classical, electronic. So my tastes are pretty broad. I'm pretty open to music.
TPAB was a highly intellegent piece of music. It was measured and clever in how it used all of its individual parts to convey a powerful message which wraps up well in mortal man.
My issue is that its also, for me, and I suspect a lot of other people, pretty obtuse. As in, once I had read through the lyrics, thought through it in my head and listened to the songs a few more times, it then came together. But its like, I don't get like any feeling from it, because its like there's this analysis. It's interesting, but its almost like the tricks used to make it such a good technical album hurt its emotive impact for me.
So, that's why its like a 7/10 for me as an album.