My thoughts are the scope needs to be “good enough”. What that means to me is a sight picture that is clear and sharp at the ranges at which I use the scope, at all magnification levels. They should also hold their zero and if not precisely 1/4” or 1/2” or whatever per click, they should be consistent. They should, of course, be nitrogen filled for fog-free performance. There are other features I look for as well, but those are the most important.
What that means in practice is that I have a bunch of Leupold (multiple Vari-X IIIs, Vari-X IIs, VX-II and multiple M8s) and Burris (Fullfield II with Ballistic Plex reticle) scopes. My rifles are hunters and I consider the rifle to be far more rugged than any scope. Therefore I spend more on the rifle and take a spare when hunting. Most of my Leupold scopes were purchased used, for $100 (M8s, Vari-X II) to $350 (Vari-X IIIs) with the others falling somewhere in the middle . The Burris scopes, all purchased new, run me $159 (3-9x) to $259 (4.5-14xAO).
Last November I went elk hunting with a Remington M700. Coming down off the first mountain I fell twice, dinging both the stock and the scope, both purchased new. I was really glad it wasn’t a $1200 Swarovski riding in the rings. Wasn’t the first time I’ve taken a hard fall, and it likely won’t be the last…
Now a scope for a a range rifle/safe queen would be a different story…