How difficult would it be to make a decent paycheck at a large national residential company that pays on commission only.?? I have a job offer from them.. They say some of their techs make 100k if they sell maintenance plans and things like that.. Then some only make 40k. I mean to make a 100k that means you would have to produce 600k annual sales. Is this realistic? They run about 10 guys and up to 20 in the busy season. Kinda hard to determine true income potential..