I mostly stick weld stuff rather than using the mig. There are times I use it just not often. Last year I went to 400lbs of welding rod vs maybe a 1/2 spool of wire. My TIG is 300 amp watercooled and is a great old machine. I will TIG before even thinking about gas welding. I had shop classes in school but growing up and living on a farm I was welding long before those. But the key thing most have said is practice, practice, practice. Here is my gear minus the portable welder. And I'm thinking of upgrading my miller 185 to a 250 and be able to run a alum spool gun.
http://www.schoutenranch.com/miscfarm/welders.JPG