At $7.50 each that's $187.50 just for box of 25 or $750.00 if I wanted to start with 100 cases. I'll stick with the Mag-Tecs, my pockets Ain't that deep. Other than loading small quantities with minimal or homemade tooling there is no real advantage to the all brass hull. If you want to load plastic wads & smokeless powders spend the money on a decent press & use plastic hulls.
Personally I enjoy loading the brass hulls for my old black powder guns so no big deal to use the larger sized card & fiber wads. I can do a big amount of shooting for what a box of 25 of the RMC hulls cost.