Ye of little faith.Interesting responses. Interesting assumptions.
It is a piece of mind thing. I don't go to the line double guessing myself. I know if there's an ammo failure then I didn't cause it. If it's my reloads, I own it, I worry about it. Also, nobody comes over later giving me advice about more crimp or less crimp, longer COAL or shorter, bad headstamp or good, or telling me I should use a different powder. It's one less thing to worry about.
Thank you, Rabid Wombat.
Seriously, it sounds like you should have a lot more confidence in yourself than you do.