Last year, I bought a 4" S&W Model 29-2 back from a friend after ten years. It had "spit" with magnums from the day I bought it used. I had my local smith try to fix it, but it needed to have the forcing cone re-cut and the barrel hood turned back. He didn't have the lathe he needed, so I sent it to S&W.
S&W re-cut the forcing cone, turned back the hood... and put a deep cut in the barrel. They didn't even bother to mention it before they returned it.
To make a long story short, the barrel had to be replaced and the gun refinished (after a long fight with S&W). I now have a Model 29 with the box and all the accessories that's worth about $400... <sigh>.
Several people told me I just should have bought another one. Strangely, I didn't think that eating $900+ for a replacement because of somebody else's incompetence was a good idea...