Conor went to boxing because he was going to make 100million. I would guess Paulie is more than willing to come to the UFC for similar financial considerations.
I don't think this is about money for Paulie.
Conor said he knocked down Paulie in sparring IN boxing.....a sport that Paulie was a 2-division champion in. I don't understand why he would go to MMA to protect his reputation in boxing. It only makes sense why Paulie wants to protect his boxing credentials, when Conor and his team released those selective clips and made those claims.