I've degreed May "concept album month" for the majority of my listening. I've got almost 150 concept albums in my library, prolly another 30-40 sitting in Spotify, and I just went through the 6 'concept album' threads that have popped up over the years, and have another 40 or so I'll give an honest shot at (though, I'm virtually certain more than a few will be a waste of time - *cough* Pain of Salvation *cough* ... *cough* Porcupine Tree *cough*)
So, if I were to do a Top 50 Concept Albums thread, anyone care?