My goals for the most part are to have fun and compete with it. In that order.
I've always chose the "different" way to do things and therefore want to use my new Mod 29-10.
I've owned and shot a .44 mag since I became old enough to purchase a pistol, I'm mid 50's now.
That being said, I have hundreds of .44 cases to reload and play with so it's cheaper for me to use this caliber.
Besides, who doesn't love seeing "Harry Callahan's" gun going through the paces?