Like AllenJ, I've hunted hard through the decades and I've never had a Leupold break. I've mistreated them, but they keep taking the punishment. Unlike Leupold, I've had Weaver, Tasco, Redfield, and Nikon Monarch fail me. I don't buy them any more. I do also have a couple of Burris and one Vortex Viper and no problems from them so far.
From chats on this forum and others, I've come to think that the scopes that are breaking are mostly the turret types that get a good bit of cranking this way and that. And, of course, the cheap scopes will tend to break or mistrack. And that brings up the word "cheap". We all have different thoughts on what a cheap price is. To some, cheaper than a Nightforce is cheap. To me, I suppose less than $100 would be cheap - like a advertised 6-24 tactical scope for $69.95. Do we really think that scope would hold up? Nah. But...back in the day I had a 6-24 Tasco on my 220 Swift and it lasted years till I upgraded.
So now I'm rambling...forgive me.