Welcome SouthDakotan.
You pose an interesting question. The quality of the Irish made Schrade's may vary a bit. I noticed that especially on the stuff that hit the market from Smokey. I bought a broad spectrum of them from Smokey last year. Some I really like and some will set in the box they came in and probably never even be displayed. It may be that some of the stuff I got from Smokey was the dregs or perhaps seconds. Some were missing insets in the handles.
I like the fixed blades, the AP12, AP13, & AP16 are good users for inexpensive knives. I also like the AP5 folder. It is the first knife my youngest son ever bought with his own money. It proved to be a good first knife for a young boy. It sort of put him on the road to collecting. I also like the AP55, though I have never used any of the AP series as an EDC.
I did use the TM-45, putty knife with large knife blade in the handle. What a great concept tool! I had to repair two holes in the bathroom wall where a towel bar had pulled out. The knife blade worked great to clean up the broken edge of the sheet rock, and the putty knife is just the right stiffness to apply the wall patch. I really liked the way it preformed. Glad I have a couple.
The bottom line is, if you like the AP35 you should get some while they are relatively inexpensive. The value of the knife is something you establish for yourself. There hundreds of knives on ebay that other people place far more value on than I do. If the AP35 works well for you then buy them, use them and most of all enjoy them, that is what collecting is all about (at least to me).
Enjoy your collecting,
Dale