Cause there aren't as many out there???? I know the 61 Navy is a rare breed. I looked a long time before I got the pair I use for CAS. And, I know a few people that use 1860 Armies; but the Remmies and 51 Navies are more prevalent.
Fingers (Show Me MO smoke) McGee - AKA Man of Many Colts - Alter ego of Diabolical Ken; SASS Regulator 28564-L-TG; Rangemaster and stage writer extraordinaire; Frontiersman, Pistoleer, NRA Endowment Life, NMLRA, SAF, CCRKBA, STORM 327, SV115; Charter member, Central Ozarks Western Shooters
Cynic: A blackguard whose faulty vision see things as they are, not as they should be. Ambrose Bierce