Basing someones production on future production is just as risky, if not riskier. You would STILL have to look at past production to make a guess on future production.
If he doesn't budge, let him salsa for the Chiefs after next year where no one will see. 8 mil is about right for his age and the going market. I've long gotten over the notion of this team losing receivers. Time to make someone else a household name.
“Never argue with an idiot. They will only bring you down to their level and beat you with experience.” MB Rule # 1