I look at high end as the highest quality, regardless of price. I learned at a tender age that a lot of "high end" stuff was anything but and often mediocre to crap, supported by a famous well promoted name, snob appeal, and a complex of human mental and emotional issues.Yep, as usual
Not easy to keep a thread "pure and clear".
High end = denoting the most expensive of a range of products.
But that is only Oxford Languages and obviously the definition does not apply to pipes .
When I worked in Jewelry I sold Patek Philippe, Audemars Piguet, Vacheron Constantin, and Piaget, along with Omega, Bulova, Tissot, and Caravelle. The Tissot carried a better warranty than the high end stuff, and was a very reliable time keeper, as were the Caravelles. The Omegas were about as good a time piece as you could get at the time, excluding the Rolex Oyster Perpetual for diving purposes, and had the same unconditional one year warranty as the Tissots. They also cost about 10% of these grand names in watchmaking and the Caravelles ran about 1/1000%.
If your standard is based solely on $$$ then Patek, Audemars, Vacheron, Piaget, etc are the high end. If your standard is quality of time keeping, the result is going to be different. It's not that these grand names aren't high quality, with the possible exception of Piaget, ust that they're not the only high quality. The Caravelles kept time as well as any expensive watch, excepting Chronographs. But only an idiot would wear one in a shower. Omega and Tissot were backed by an unconditional 1 year guarantee. Regardless of circumstance, except in case of deliberate destruction like taking a hammer to the watch, if you could bring in the physical wreckage, the watch would be replaced free of charge for the first year. We had one customer who thought he's acciently lost his Omega Seamaster overboard and found it 8 months later when he was cleaning out the bilge tank. We sent the rusted movement to Omgea and they sent us a new watch to replace it, no questions asked. Nobody else offered that.
So too with pipes. What is the best quality? That seems to be the running standard rather than what is the most expensive.
However, if I am wrong about this then please feel free to request that my posts to this thread be removed as inappropriate, since none of my pipes are the most expensive to buy. They're just superb examples of quality, or ingenuity and character.