Some earlier said 700's have a higher repair rate. Not only are they far more plentiful than other brands but they are typically shot more than others as well. The guys you see propped up behind a 700 at the range usually shoot a bunch. I'd be willing to bet the average 700 shoots for more rounds in it's lifetime than many other brands.

I'm not saying they're perfect. Far from it. But I don't think service rate statistics mean much unless you consider how much more use they may get.