Have to disagree.
There is more to this than that. He has to want to play PRS and must like the vibe from them.
This guy has so much celebrity, fame and money, any royalties from PRS are chump change.
That can't be the reason.
Or course money is the reason. Any smart business person always plans for the future and tries to broaden their portfolio. It doesn't matter how much wealth a person has. We've seen countless cases of wealthy people going broke very quickly. So, it's always best to dip your toes into as many puddles as possible.
Oh...fun Mayer fact. As I was looking up his net worth, which is about 40M, I was stunned to see he is an expensive watch collector and it's estimated those are about 1/4 of that. Can you imagine have over 10M in watches alone???? lol