Silva regaining the title won't mean much?
For sure, Silva only signed up for the rematch because he's not hungry to avenge his loss and get back the championship belt or anything irrelevant like that. It must be solely for another big pay day even though Silva already has more money then he knows what to do with.
He's signed up because he was offered. We can safely say that he's not crying at night and not dreaming 24/7 about winning the belt back. The guy was talking of retirement, superfights, Roy Jones, etc more times than I can count. Never heard of him dreaming to retire with the gold around his waist. Even after his loss, he kept talking of superfights, hiring Chuck Norris... it's like Shogun hiring Freddie Roach and getting his ass kicked by Sonnen. Silva will be embarrassed just like that. He doesn't have Cain's mentality and hunger for vengeance. He's been the best for too long and doesn't have anything to prove.