I guess you haven't had anything with a lifetime warranty leave you hanging YET.
Not sure what kind of hunting you do, but vortex shit is like taking a Canadian Tire Air mattress on a week long mountain hunt because they have a lifetime warranty and great return/exchange policy. Or a canadian tire dingy for a river tube trip.....
You can start out with a vortex and be happy with it (even recommend them to people that don't know better!), but after you gain some experience you will buy something decent.
OP. The Sig is the best bang for the $