I inventoried my knife collection the last few days. I've got a little over 500 knives in the collection ( and about 200 knives that aren't really in the collection).
What I discovered. About 1/6 of the collection is fixed blades. Of the fixed blades at least half of them are knives made for anglers (fish knives) if you include bird and trout knives it goes even higher!
Overall 1/5 of the collection, over 100 knives are fishing knives of some kind. If you include five inch toothpicks the number is closer to 140! I do not consider toothpicks a fish knife.
The most collected single pattern is the 4 blade camp knife or Boy Scout knife. Around 120.
Next in line are Marlin spike knives and toothpicks. Both around 40-45.
As for money spent on a single pattern
1 large toothpicks
3 scout knives
Which brands I have the most of:
1 Rough Rider
As for the direction that my collection is going
1 fishing related knives
2 issued military fixed blades, particularly bayonets
3 Swiss Army Knives.
I can expect my return on invest to be in the negative column!