Our problem is we only have 1.5 acres. Spud will go a lot farther than the yard allows. They will go through plywood too.
That could be an issue ... maybe a tennis ball launcher for your property and a spud gun when you are on BLM land or in the desert. At least the damage that can be done from a tennis ball is minimal.
Powertig 200DX
Lincoln 180c
Hobart Handler 125
Miller Thunderbolt
and a bunch of other tools