I don't use a gas axe for much. I prefer a drill for holes. I don't like the spatter. Besides, it destroys the paint.
If I have something too thick for the plas cutter, I cut it with a Metabo cutoff wheel or my horizontal band saw.
If you are going to get a plasma cutter, get an inverter model. They run cooler and start easier, especially if they have a pilot arc.