I can't speak for 357 brass, but 44 mag just seems to keep going on forever. I've got some that has been through the ringer at least 15 times and it's still going.
The main failures of 44 mag brass, for me anyway, is:
1. Accidental damage by me just being sloppy with the press (and this is by far, head and shoulders above any other type of failure)
2. Losing it
3. Case mouth splitting, which has hapened to me so few times that I don't even want to mention it.
The stuff just seems to last forever, and I full length size everytime.