Ok I 'm still trying to figure out what part of this is the "machismo" part as virtually nobody but my son and the few associates that understand guns know that I load for wildcat cartridges and most of them don't have a clue. But aside from that there are alot of calibers that were "left out" by factory and "standard" chamberings. Try to locate a long list of chamberings for a Contender in the following calibers.
6mm, .25 cal., 6.5 mm, 7mm (besides Waters which is nearly a wildcat anymore) and so on. The point being that the gun has huge potential but was hugely lacking in availability. Not everybody was happy with a .223, 7-30 Waters, 30-30, .375 Win (try to find ammo for that at Walmart) and .35 Rem.
I also happen to believe that working with wildcat cartridges teaches you some things about handloading you will not learn anywhere else. Case forming, headspace calculations and corrections, load development (something besides reading a book and copying info).