Well yeah, "The Wall" and well at least a couple more records Floyd did are considered great concepts, but I'm just not as into them as I am the Ryche', I'd put Mindcrime with The Wall or Darkside anyday, I like MC's concept more, even though they are all dark concepts, except for maybe Darkside, the music on Mindcrime doesen't get me down like it does on The Wall after awhile.
You're right, the wall can get you down. It's quite hypnotic.
The song "suite sister mary" blows me away on Operation Mindcrime. For a long while it was my favourite song ever. I'm a big fan of vocalists doing changes in a song. Geoff makes it sound like there's multiple singers (4:51 - "Mary my lady of pain, always alone...") Wow, just wow.