Mark
It just sounds like to me that your having fun again so keep doing what your doing. As Donny said our opportunities as older musician/ entertainers are limited so if you have these opportunities take them while they last. Some day, and I hope it never comes for you, that Kareoke guy may be grabbing all the gigs because he's $25 cheaper.
You have performing experience that few have so use those skills, and keep having fun !