You can sell sulfur? But it's in gaseous state. It can be converted to solid? Mmmm. Fascinating.
SO2 is a gas and a highly corrosive gas. S is a rock and very easy to handle. Of course, burning sulfur you get the corrosive gas again.
I hear the smell is not spectacular.
It has a sharp smell. The foul-egg-smell is H2S, which volcanoes also spit out.