If by 'glory days' you mean sales alone, then yes that's true (and not at all surprising). I look at it from a different perspective, (because I don't have to worry about revenue), and I think that the band can still produce quality music.

Jon has all but admitted that the last few releases have been a Jon Bon Jovi & Shanks collaboration. There have been some gems on those ventures too but the return to a band production, to whatever degree that may be, has borne fruit.

Some of the glory is still there to be tapped into