There are a ton of Hall of Famers who hung on to reach certain benchmark numbers, while not improving their WAR much at all. Not only did he not hang on, but during his last season he produced at a level near his prime years and still walked away. Who else has done that?

If you add just two more years of his final WAR to his Career WAR, he is Top 15 among First Baseman All-Time (behind only Hall of Famers & juicers) and nearly to the Average WAR among all HOF First Baseman. So unlike guys who hang on and accumulate counting numbers while not improving their advanced metrics by much, he is the rare example of someone who actually hurt his own HOF case on the basis of advanced metrics by not extending his career.