I see hardiness as applying to a specific species and not as the same scale for all types of corals. This for some reason specifically applies more toward acropora and SPS where there are some types that are easier to keep alive than others. This doesn't happen as much with torches for example, generally if you can keep a basic yellow tip purple tenticle torch alive, you can keep a holy grail alive.
From there within sps and acropora, you definitely have the collectors who want the nicely colors acros. That usually falls within the lineaged more expensive corals which when comparing those to nicely colored wild caught is no real comparison on hardiness level.
I've personally brought in a direct indo shipment of acro colonies, had them in the same tank as lineaged pieces I had and saw all the wild caught colonies slowly die. After about 6 months, I maybe had 2 colonies left out of 40. While the lineage pieces in that tank were still thriving. So given the statement that these are expensive due to exclusivity, I'd say they're expensive because they will survive in the right tank parameters. (Not loosing their colors is a nice bonus). My money would've been better spent on the equivalent dollar value of lineage pieces.
Trying to compare those to a green stag, stylos and digis or other coral species we trade and can withstand a wide variety of tank parameters just doesn't work because their on a different level in my opinion. Those corals (along with almost all corals) are great, don't get me wrong. But it's the part of taking a hobby and wanting to get as good as you can in it. And for some, that means keeping harder to keep corals and the satisfaction of actually being able to do it.
It's not for everyone and it's fine that not everyone feels the same, but we should all respect each other's opinions. It should be a discussion and not an argument.
