I have now been to three different places that have either stopped selling spydercos all together (Cabelas, local army surplus) or have cut back on the types they sell. What's up?
As far as Cabelas go, you may never know why. All sorts of things effect what a big merchandiser like them chooses to carry, many totally removed from anything we might find logical.
One thought, and its just a guess, they may not be able to get the quantities of harder to get Spydies people are looking for and got tired of tying to compete with Amazon's pricing on the more common ones.
The guy at the local army surplus said they were old fashioned.
Thats odd or funny, or maybe both. At any rate, not sure I'd listen to him further.
Another martial arts place said they were getting too expensive, but he was selling all sorts of high dollar stuff, like gold class benchmades.
Also odd and funny too. Spyderco is too expensive but overpriced BM Golds aren't?

Spyderco has been adding more higher end items (LionSpy, Vallotton, Southard, Szabo, etc.), maybe thats what he meant.
Think I might avoid seeking advice from him too.
Why the loss of love for spyderco?
Far as I know, there isn't.
Wouldn't worry about it too much, still plenty of sources for whatever Spydie you are looking for.