Nah theyre all fucked mate, they look fucked they sound fucked
But silly bastards are forking out mega bucks for nostalgia, baby boomers with too much dosh.
I only partially agree. In the last 2/3 years, the more senior bands I have seen:
Peter Gabriel - slick production, still great voice but lacked energy for me
The Who - well half the who! Townsend, still a monster guitarist, Daltrey hmmmm. Voice and energy levels sadly lacking
Anderson, Rabin and Wakeman, of the five or six times I have seen Yes, by far the poorest concert. John's voice still just about ok but again, band lacked dynamism and energy. If Wakeman moved next door, you would definitely move out.
Steve Hackett - Just brilliant at every level. Think the guy is hitting 70 and he just keeps getting better. Not like his band were young things either.
The Oz Pink Floyd - seen them a couple of times and enjoyed their concerts better than the originals.
So I see where you are coming from. In the main, the old guys maintain their musical dexterity and genius but they definitely lose the dynamism, edge, energy of performance with the noticeable exception of Mr Hackett. Kind of glad that Led Zeppelin will never reform as would rather remember them as they were in their pomp.