I agree, they seem extremely rare. Our first was N198JW, registery showed it as just an 680F, but it was actually a 680F(P). It's hasn't flown in a few years, it's seems like alot of them haven't flown in many years if you look them up. I guess I understand all the reasons, never really thought of ours as a rare bird, but it appears to be one. I guess all of our commanders out there are rare compared to many of the contemporaries we see now. We are dating ourselves too, remember back in the 1980's and 1990's seeing Aztecs, Apaches, 310s,421s, all the time at basically any airport we landed at? My son who is 23 years old, just stares at one of these if he sees one now.
TBMs, cirruses, citations, phoenoms, are what we see now everyday at our airports.