.- The contractor can save money on advertising costs -- I'll refer him to lots of other investors and he'll keep busy without advertisingThe firm you want is already spending so damn much money on advertising it would make most investors sea-sick... they are not worrying about 1 customer making or breaking their yearly figures through word of mouth.- The contractor doesn't have to worry about someone who wants to cut corners (I don't do that)A good contractor won't work with someone who wants to cut corners.