The warranty tends to cover a lot more than it reads. Stern has to legally draw the line of what they'll be obligated to cover, but they have shown that they will actually cover more than that. I got a playfield replacement for something that they could have easily passed off as "acceptable amounts of wear." Stern stood by the game and fixed the issue.
Eventually things get made right. When buying NIB it comes down to whether or not you're willing to deal with the hassle that process might bring if you have issues. If the answer is no, buy HUO and get a game that's held up well through a good amount of play.