1973 - 1st player to ever rush for more than 2000 yards.
Also had multiple commercials for Hertz and other products continually airing on TV.
Seemed like a charismatic guy.
All this combines with the increasing popularity of football back then pushed his rokie card higher and higher.
"The government’s view of the economy could be summed up.....If it moves, TAX it. If it keeps moving, REGULATE it. And if it stops moving, SUBSIDIZE it.”.....President Reagan, 1986