My wife's the knife collector in the family. Sometimes when she buys a new knife, they toss in a cheap one to sweeten the deal, and she gives those to me. As a result I have more small, decent folders than I need.
FIXED not folder.
ANd the intent is to have duplicates of the SAME knife so that I can toss one should it be necessary and be out very little.
Carpet cutters/Razer blade knives are too small, moral are too large.
Look up the Km bar TDI and Shivworks knives to get the nitch concept.
Got plenty of cheap folders and fixed blades, want to buy 6-12 identical knives for ~$100.