I got my money's worth from two Gatorskins and two Marathon Mondials over the last three years. No major tire failures before that.

But, I managed to get a 1/2 inch diameter stick to go through my $120 fatbike tire. So, that offsets all the good luck I had with my touring tires.

Not that this describes anyone in this thread, I've seen people come into my LBS angry because they got three flats in a week, like yelling at the LBS was going to compel them to fix the problem. The tire gods can be fickle, there's no rhyme or reason to it, sometimes you eat the bar and sometimes the bar eats you.