#4 He doesn't have age on his side

Let's get one thing straight. A pro wrestler has a limited shelf life in this business. There can be a certain amount of time until you're able to do these things and then you'll have to stop as the performance just falls off the cliff. CM Punk at the age of 41 doesn't have that many years where he can carry on doing something like this at a high level.
We've seen this with too many wrestlers. How much of a toll it takes on their body and how low the quality of their matches fall to after a point. At this point of time, Punk is still fit, still in shape and can perform at a high level. But with not many years left in the kitty, he could be looking to make the most of this when he can and earn the cash that secures him for a lifetime.
Major rumor about recently released stars HERE