> But seriously, what do you gain from an expensive blade that isn't present in a $15 Mora or in any of several Buck knives with well heat treated stainless steel

With that in mind here's a failed destruction test on a $15 Mora
https://youtu.be/fKlcBpKbAvM

> If I posted every new knife here my wife would find out what
I've been doing with my money. I can't have that.

Don't forget to leave the standard note with your gear for after your death 'Sell my gear for what it's worth, not what I told you I paid for it'.
The good news is: your memory isn't going; that "this old thing I've had years" that your wife suddenly appeared in.
Really was just bought" :-)
qjs