All true, but still a fun night out at a reasonable ticket price. No different than The Who, or the Stones for that matter who are probably farthest from their 70s form.
The only exception to the rule is Alice Cooper whose live act now is musically better now than back in the day, even if the writing can't touch that of the ACG.
Dudes are all old now. 70s are gone, enjoy what you can
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