I think they do need to change things, but how could they when the "same thing" they keep releasing still appeals and sells? It's hard to tell people who want money - I guess we could say this is mostly the label, although I'm sure the band enjoys the hits as well - they have to do something different when they can keep making close to zero effort and still get all those coins.
P.S.: I love M5 but I saw them earlier this year and it was a FAR cry from the 2012 concert I attended, I was very disappointed.
