My Vortex Fury binos served me well in Alberta during sub-zero weather, never fogging or stiffening up. In fact my guide compared their optical quality at dusk one day to his $1,600 Leicas at about 8X the price.
If its a defensive rifle I'm not sure how much time it should spend in a bag as opposed to being ready for action but I do keep mine stored that way with two pistols at the ready to get me across the room to the rifle. I've had my StrikeFire for about 2 years now on the same battery with a fair amount of range time. I've had the SPARC since November IIRC and neither has ever been damaged or found on while in storage. If it were, I've almost never had occasion to use more than the minimum brightness setting so I'll still have more than 3 months on a fresh battery to discover my error even if the 6-hour limiter fails to turn the optic off.
If the Vortex dies a pitiful death I'll simply send it in for free, no questions asked. Aimpoint's consumer warranty is 10 years, 2 years for professional or "similar to professional" use. So all diehard users take note: you'll have 2 years of coverage or you'll be lying to get your Aimpoint fixed. That or you'll be out a hefty sum everytime it fails.
Is the Aimpoint far and away more rugged? Do I expect to test those limits with my usage? I can't answer those questions. Heck, I'm not even a member of afrcom. This discussion is beginning to remind me of the "Chart" that would have everyone believe (through interpretation) that no "tier 2" AR could spit out more than a few boxes of ammo without falling apart. When hoards come along to report positive ownership the response is a universal didn't run it hard or the famous sample of one.
I'm so tempted to start torturing my SPARC to test its limits but it should not fall to Vortex to pay for such foolishness, they have their own test procedures.