Brown already cashed in while a Steeler and with all his off & on field trouble, he'll probably be stuck with incentive deals going forward.
Spotrac has AB's career earnings around $77.5 million. He's 32 and will be 33 when next season begins. Nearing the end of his career. He made $7.5 million total in the last 2 years, when his deal with the Raiders would have guaranteed him like $30 million.
But, his actions over the past 2 years, along with his age will limit him to incentive based contracts. Don't see him ever hitting 8 figures even with performance bonuses. At this point, I don't see a team viewing him as anymore more than a #3 option given his off field dependability. Can't take the risk that you lose your #2 WR for an off the field issue.