No harm no foul, db.
We've had some makers pass away on us, alright. They were part of the "crew"... there for us with solid advice, building us some custom pieces... cracking us up at night on BFC Chat.
My sig line is still an old quote of yours, from back in the day when we were watching the rise of "mid-techs" made by machines.
You can probably answer this question by looking back on our history here. Did the Kit Carson factory designs go up? How about the Simonich designs? Not a lot really, unless the model itself is no longer available. You can still get a M-16 from CRKT dirt cheap because they still make them. The F4 might be a bit more steep? Rob's Cetan design from Camillus USA will cost a bit, because Camillus USA is no longer in business. and the supply isn't there any more. The Phil Boguszewski Spike from Benchmade is pricey, but again it's because it's an out of production piece.
Don't take my casual nature discussing this topic as callous. Some of these folk were our friends, and I still feel the holes left by their passing in this forum and the knife industry alike. But you asked a question, db... and this is still a discussion forum.