I will agree; a bottle of shielding gas also makes it possible to weld a larger variety of metals, depending on the gas and wire you choose.Matt93SE said:Meh.. the rosin core wire sucks balls. makes ugly welds.
A bottle of argon costs about $150 up front for the bottle and gas, and I pay $18 to fill mine up each time.
your roll of wire.. a 1lb roll of rosin core wire costs $10. I buy a 10lb roll of solid wire for $19.. Honestly, the gas and solid wire will go a LOT farther for your money, and it produces better results.