Knives are cool.
They are addicting. At one time I had over 300, but have pared that down to about half of that. Part of the reason was I used to be a Bark River dealer, and when I moved I still had about 40 Barkies, and since then I've sold some.
I also like the older Marbles (not the modern crap); older Gerber (not the modern crap); the Effingham Blackjack knives; Benchmade; Swamp Rat; REKAT; Case, Fightin' Rooster; Bulldog; Schatt and Morgan; Queen; Moore Maker; KA-BAR; Mil-Tech; Greco; the Buck 110; and I few custom/handmade knives.