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@deleted
the way i see it with mig is that anyone can do it. the phrase 'monkey with a mig' springs to mind.
they are cheap, it's a roll of wire coming out of a nozzle with some argon flowing around it and some amps whizzing out the end.
tig is a different ball game. the kit is expensive. it uses expensive torches with ceramic shrouds round a central tungsten rod, high frequency units to initiate the arc and use dc so need a big expensive box to convert the ac. then there are the filler rods. if you are welding stainless/alloy or dissimilar metals these rods are expensive.
welding big sheets of mild steel is mig territory. stainless/alloy or thin pipework is usually tig.
i don't know much about welding just what i have seen my old man do/talk about.
all this talk about neatness is pointless if there is a lack of pentration in the weld or porosity.