Interesting thread. FWIW, good quality scopes are all around. And they aren't always the expensive ones. I have a $1500.00 Zeiss on my .30-06 hunting rifle. It's been to Canada, Alaska, Colorado and Montana. In Newfoundland, I dropped the rifle, and the next day, the scope was foggy. My back-up for that trip was a Tru-Glo 3-12 X 44 on my .280. During a week of rain with one day where we saw all 4 seasons in one day, that rifle/scope combo worked for me. And, when I need it, my moose dropped cleanly at 360 yards.
Today, that scope resides on my mini-14 with over a few thousand rounds through the gun. No shifts in point of impact at all, the Zeiss was replaced no charge, by Zeiss. The .280 wears a 3-9 X 40 Leopold. And, the optics, on the Tru-Glo, (to me at least) are crisper than either the Zeiss or the Leopold. And she still shoots to point of aim.
If I were to go to Africa (first time) or Canada (again), I'd have no concerns taking the Tru-Glo.