You are absolutely correct. Sightron makes good optics but they are nowhere near as robust as a Nightforce. For those of us who don't abuse our gear(most of us I hope) the Sightron may be more than enough optic. If you want the piece of mind that your optic can take a sh*t kicking and hold up then you gotta pay to play.
First off Jerry, every single optic thread is prefaced with your "buy sightron" mantra. Seeing as you're a dealer who sells Sightron your opinion might be just a little bit biased. Second, winning matches is great, now take your rifle invert it and drop it on the scope. Tell me if your Sightron still holds zero and tracks correctly. Record groups have nothing to do with tracking either, it's about the shooter. More importantly the only people who shoot groups are competitors, hunters and the MIL/LE users don't shoot groups, they get one shot at it. Again, I'm not saying Sightron is junk because it is far from that. I'm saying they're not the most robust dependable scope on the market. The price difference between a Sightron and a Nightforce/S&B/Kahles etc is justified by the care taken in manufacturing, the components used and the ability to abuse the optic without worry.