Classic bands in their heydey

I was talking a friend yesterday at a cookout about how disappointed I've become at most band's efforts as they've gotten older. And that got me to thinking about bands maturing, and like someone had pointed out in another thread that bands aren't 'hungry' late in their careers. I don't like it when bands mature. If listening to Jovi's last 3 or 4 releases, and Dokken's middle efforts is maturing..then color me juvenile...cause I'm not interested. Then that got me to thinking that bands should just record a whole bunch of material in the beginning to 'bottle' that classic signature sound...to take advantage of the hunger, and the lead singer's voice....and then slowly release the extra stuff over the years...I realize most bands end up releasing a cd, or two of unreleased/demo tracks.....but that stuff is usually low quality/demo quality. And you can tell why these songs never made it on an album.
It would have been great for Jovi to record 20+ songs during the Slippery when Wet sessions, or Winger doing the same for PULL....then taking the leftovers and releasing another album.....whereas they got to capture the same tone/magic on more than 10 songs....
It would have been great for Jovi to record 20+ songs during the Slippery when Wet sessions, or Winger doing the same for PULL....then taking the leftovers and releasing another album.....whereas they got to capture the same tone/magic on more than 10 songs....