Let's face facts. For a "steady diet" 38 Special is a lot more fun to shoot than 357 Magnum. 357 is doable, but expensive and punishing.
Not if you reload. Just a little more powder. It's not punishment in a GP. Recoil is not that more noticeable if you keep your .357's within reason. Mine is so good I will probably shoot it more than my Python or King Cobra. I'll keep them for prestige, the GP is the comparable workhorse.
When there's no time for 911, I'll use 1911.