If it's buying a car, yeah, that's a big expense. Better do your homework. But sometimes, even in such cases, I'd rather pay a little more for less hassle. Not thousands
more. But, if I have a to pay $500 more to a contractor who doesn't bug me at work all the time and who will leave me alone (unless he has questions) and who has a good reputation for showing up every day and getting the job done in a timely fashion, then "where do I sign?" In that case, I'm not worrying about $500. If contractor A is bidding $15,000 and the contractor with the good reputation is bidding $16,100, then let's just go ahead and get it done for $16,100. Save me the hassle of having to think about it all day. Or maybe I'll try to talk him down a bit to $15,500. Maybe he'll budge, maybe he won't. Either way, he's my guy and I'm going with him and I'm not going to worry too much
about the small difference in price (relative to the other guy). Now if he was charging like $5,000 more, then that's a huge problem.
That's how NP's focus on the "big picture" - it's like, just get the job done well and let's not hold things up for weeks (or even hours) because of a small price difference. Let's just get it done and move forward.