Not particularly expensive, and he's far from a Hall of Famer, but he did pitch in parts of 25 seasons, throw over 3,800 innings (just outside the top 50 all time) and throw one mean knuckleball!
He also finished his career with exactly 216 wins and 216 losses, which I found interesting.
Vintage Spotlight: The Best Rookie And Star Cards From 1973 Topps