Why does everyone go to extremes.

First it was someone throwing out the 50 AE now it's the 44 mag. What about the 357 Sig or the 10mm Those are viable steps up in power. I don't carry the 44mag or the 357mag very often for several reasons 1. I can get similar power in that range from a striker fired pistol that greatly reduce (perceived) recoil due to their low bore axis. 2 I don't like the lack of capacity even with speed strips or loaders. As far as not carrying you gun cause it's heavy that up to you I've found a system that works for me and carry during all my nonworking hours even in my house and yard I really don't notice it anymore.
One reason people don't carry these calibers is the cost of training and ammo. However with most of the striker fired pistols in these calibers you can get conversion barrels so you can train with cheap 40 S&W or 9mm. So your never without ammo even if your main defensive ammo gets scarce.
That raw conjecture was a combination of 4 different real life shootings where people made hits and the bullets didn't perform as expected and didn't stop the aggressor. ( The one through the cheek was a cop shoot by a guy with a 357mag @ point blank range he thought of his kids got back up and killed the guy who had let his guard down after "shooting the threat in the head")
Final thing, I found Michael's podcast this week especially meaningful. When I first transitioned to the gun I carry I wasn't as proficient as I wanted to be (some day's I downright sucked) I didn't blame it on the gun's fit or the recoil or my hand size. I redoubled my efforts to focusing on the fundamentals and step by step I got better and better. I couldn't agree more with his lesson on not being afraid to fail in your effort to learn.