I just got a quote for around $1,400 for (6″ crown + labor and paint included) for my whole 1826 sq ft single story house.

My house has high ceilings even in the bedrooms and there are many weird angles. I think I will hire this guy rather than do it myself.

With the cost of buying materials at around $700 (more waste when I do it) + $100 for delivery and paint. I think the extra $600 is worth it because he will do a much better job that I can.