When would you use an oxy-acetylene weld?

Some weldors only use Oxy/Acet to weld with. I've used it on steel, aluminum, brasses and bronze as well as silver soldering and brazing. If I had only one process available to use Oxy/Acet would be my choice as you can cut, braze, heat and weld with it. It is the process of choice for artists and craftspeople.