That depends imo. When I was getting prices to re-shingle, the "best" company was more than double the company I went with (I was happy with the company I went with, the two owners were on the tools). They did some things differently (eg scaffolding entire house) but imo, most of the price difference between the top few companies and the rest was a five figure commission to the sales guy. That adds no value to me.ALWAYS worth the extra cash.