Pennsylvania's RR Heritage license plates - Trains Magazine

Those of you who drive in or anywhere near Pennsylvania must have seen the special license plates the state issues, with a Grif Teller painting of a k4 Pacific.
Every day, I see dozens of them. I'm a foamer, and I never thought it necessary to pay extra to get one. My point is, are there really THAT many railfans? These things are common as dirt - way more common than the Penn State plates, in my experience.
We could take over the world and force the return of the Broadway Limited if there were really that many fans. And if these aren't fans, why are they getting the plates?