Griffin is only 31. People are talking like he's nearly 40. There's a reason he developed his jump shot to the point where it's more than serviceable. You wouldn't be picking him up for his dunking abilities.
The reason for that is simple - the last 4 seasons, Griffin has played 33 games, 25 games, 75 games and 18 games this season. In those 18 games his numbers were - 28 minutes 15.5 points 4.7 reb 35% fg 24% 3pt Maybe he does makes a phenomenal comeback next year and beyond, but looking at his production and injuries the past 4 seasons, I wouldn't bet 75 million on it (the amount left on his (2yr) contract)