The guy is not resting on stuff he did 50 years ago, but is still making good music that's probably more appropriate for his age and current vocal range. As much as I'd love him to make that cash grab on a Zeppelin reunion tour he probably realizes he simply can't hit the notes and deliver the way he'd like, and he'd look ridiculous trying to recreate the rock god persona. (We're going to the Stadium Tour in Vegas, and frankly I'm already cringing at how bad Vince Neil's vocals will be) And hey, it's not all about money. I can respect that.

https://www.youtube.com/watch?v=MPZ575AC3wQ&feature=youtu.be