Eh, thats too bad. I think you fell victim to a bad experience. Really, the current technology is both comfortable and, in most cases, durable. And they should have been repairable. Thats not a good thing.
The SL M3
But certainly, theres no real question that "old" technologysoles stitched to uppers with a Norwegian welt or Littleway stitchingis incredibly durable. And almost infinitely repairable.
A few makers still make boots in a traditional manner. Scarpa's SL M3, for instance, uses Littleway stitching, a "hidden" stitch line that binds the upper to the sole. Really tough, really replaceable. Price is $250. But these are great boots, and should last you for years.
Also take a look at Lowa Banff Pros ($280). They also use a stitched-sole design, and are renowned as a durable, heavy boot. Tough stuff.
The real deal is a boot such as the Limmer Lightweight (which is anything but at $260). These use good ol fashioned Norwegian welts, the kind with the visible stitching. Plus, 2.8 mm leather uppers, leather linings, and rubber midsoles. A lifetime investment.
So, shop around, and youll find what you seek.