So you'll tie up 3 days and are only supposed to charge a grand in labor.
Sounds like they are trying to impress you with knowledge cause they feel you are over charging based on where ever they are getting their info from. They want to put it out there that they won't be or at least allow themselves to feel suckered. They feel you see them as suckers. They are hoping for the bro deal, but are wanting the higher quality, but ultimately price rules over quality.