I'm a big fan of that era of music, and specificually Crue. I'd never say Neal is a great singer, but he was exactly what Crue required. I've seen then in concert but well-past their prime about 10 years ago. Neal was okay, but had lost many steps. I thought Crue did their "last show" about 5 years ago?? Apparently that's one of the big common scams to jump ticket sales that so many entertainers do. About the same deplorable level as click-bait.
It is painful to watch our legends get old and feeble. In most cases I think they really need to hang it up and ride off into the sunset and let us keep our great memories.
In Crue's case, they've all led extraordinary hard lives - no surprise, hard drugs, booze, nights, tours, women, serious legal problems (Neal killed a friend in a DUI accident in which he was at fault and was convicted!). Sixx has died and been revived. Lee had massive legal / women issues. As great as they were they really needed to retire 5 years ago. Mars has serious medical problems.
On the other hand, people who seem to take great care of themselves like Kiss singers Stanley and Simmons seem like they are timeless. Paul Stanly is 70!!! Gene Simmons is 72!!!! I've seen them many times, and the last time I saw them was about 8 years ago making them around 62-64+ years old, and you'd think they were in their 20s... They seemed to stop the hard party lifestyle, focus on health and fitness, and up until a few years ago were still touring to my knowledge.