MIG is for hobbyists. Real programmers use TIG.
I hate when people use that term the G in MIG stands for Gas. If you are not running a Gas (argon, CO2...) it isn't Mig. There are flux core wires that are commonly used and called Mig, but they are not Mig (unless there is also a gas flow - this isn't uncommon) and have very different weld properties.
I've also got one of those wee inverter stick welders that's about the size of two VHS tapes, and that is an incredible bit of kit.