There are only 5 RBs i would pay big money for. McCaffrey, Kamara, Saquon, Dalvin Cook and Zeke. Zeke i would not pay big money now, but a few years ago when the cowboys did pay him, it was good. Even listing those 5 you see the problem with paying a RB. Saquon and McCaffrey have missed seasons and Zeke has had injury troubles. Cook is currently hurt. GUrley went from best RB to a non factor in the blink of an eye.
These are the RBs that are true 3 down all around threats that also bring home run potential. Henry is not a factor in the passing game and I would not pay a ton of money to a RB that is on the bench if my team is down double digits.
I hope Najee becomes one of those guys but I don't think he'll ever be a big play guy.