Ive used glass carboys for years including one from 1929 that my grandparents owned and Ive never had a single crack, chip, or break. I have a couple of better bottles too and while I like them I just feel better about sanitation and chemical resistance with glass.
I think a lot of the problems with glass are just from poor manufacturing, there are a number of threads about crappy glass bottles breaking during capping and opening too.
With glass heat is not an issue glass can withstand extremely high temps, its thermal shock that causes cracks or worse. as long as the glass is heated/cooled slowly and evenly temp is not a concern.