#2 Comfort
Much like some people can be in relationships, jobs and everyday life, Brock seems to have slipped into a state of comfort.
He doesn't have to work a full-time schedule, he can spend his time at home and he's paid handsomely well to do a lot less than the more hands-on superstars do. In all honesty, it's a dream situation for any of us and Brock hasn't got much of a reason to walk away.
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Sure, he loves the world of MMA, but it took a lot out of him the last time around.
Given the training camps and physical elements required, the WWE can be seen as Brock lowering the difficulty level from "hard" to "easy" or "medium". Sure, he has some brutal matches every now and then, but the frequency doesn't really add up to the eventual paycheck.
On the topic of paychecks, here's a man who deserves an extremely big one.