I have been reloading for pistol for 13 years and have had 1 blown out case in all that time. Of course I have thousands of pieces of brass for every caliber I reload so the chances of any one piece getting reloaded excessively is slim. I use moderate charges in any of the calibers (.380, .38, .357, 9mm, .40 S & W, 45 ACP, 44 Sp, and 44 Mag) and handle my brass carefully. If I come across a case badly dented at the mouth, or if it is dented or dinged in the body, or if it is developing a bright ring where the shell meets the head, I pitch it.
I would much rather lose a .05 piece of brass than the $600 gun I am shooting it out of. There is no price for the fingers or eyes you could lose by overloading, or wearing out your brass.
Keep it clean, load conservatively, handle it gently and I would say it could go at least 25 times before showing real signs of wear and tear.