I cant speak for the Vortex as ive never looked thru them. But i own a set of the
Minox in the older 15x58 version. Weve conducted side by side testing of the 15x Leicas, the 15x Swaros, and the Minox on the same day pointed at the same objects from our nc pa camp yard.
If your a nit picker and want to include an overall evaluation of things other than viewing, you might be inclined to spend the extra cash. Otherwise you will be buying the Minox because of the major cost difference.
As for the tripod, for extended glassing sessions (all) binnocs should be tripod mounted.
If you dont agree time yourself holding up your glasses. When your arms drop your no longer hunting.
And, your not hunting as well even before that happens.
Anybody can spot an animal standing in an open area. But seeing an ear or part of a rump requires a different technique.
Frankly, for those who spend hours glassing, there are better options than the good
15x glasses.