I agree with Jeff below, these prices are far below what I see on the market in the Portland Or. area. When one uses the term "paint the house" what exactly does one mean? Any fool can buy an airless paint sprayer and put paint on a house. New homes built with fiber cement siding paint clean and easily but older homes built with wood require much prep work.
I am in northern Nevada and you have not yet gotten sufficient responses to provide a painting cost chart showing the averages. I do have a quote from an outside (Not Homeadvisor referral) painter who is local for $2,750 for soffits, patio cover and posts, Garage facia (redwood clapboard above (~300 ? Sq. Ft.) on a 2046 Sq. Ft. home where the walls are 9 ft tall and it is fully stuccoed with plastic stucco surfaces, so not being painted.