In an era where the long ball is valued much more than a batting average, on-base percentage, or clutch performance, hitters that fail to come up with a sizable amount of home runs after they play into their mid-30's are frequently shoved out of the world.
A hitter whose so sole contribution is power (i.e. Ryan Howard, Mike Jacobs, Reggie Jackson) typically has a much shorter career than those hitters whom depend on speed, and batting average. The age of 40 is a death sentence for a hitter. Point in case; Barry Bonds. Bonds hit 209 home runs during his four consecutive MVP awards (ages 36-39). After his 40th birthday, he hit 38 long-balls over the course of three seasons.
A truly spectacular hitter has the ability to succeed after hit reaches 40, and the following are the top ten performances.