I had read a few years ago many comment that something changed with Ariats and the quality, longevity of their products pretty much across the board in all boots.
I don't know what changed, but something must have.
To me, if you want to resole then you need a stitched on sole not glued on to start with.
A large step up in quality of the product made from the onset and cost will show/reflect that step up in quality.
I found that even with waterproof boots if I mink-oiled the boots paying special attention to the sole and side of the footbed areas where step-sloshing through wet conditions are harshest to leather it helped extend the life of the leather.
A coat of boot polish helped to keep the contaminants and caustics away from the leather too.
I mink-oiled my boots and also sprayed on waterproofing sprays when the moisture beading stopped being apparent..
darken leather so caution to that....
At some point in time though the leather just gives up and then the hunt and search is on for new boots often not found of the same quality anymore...
Like everything else where leather is concerned, the animal the hide comes from is not the same age, thickness and resilient a hide to start with so the product made from it is not the same anymore either.
I have no idea what other boot brand or style might give you the quality and longevity you seek to replace, sorry.