Just remember, you don't need too many knives. All you need is one, and then a spare. You will also need a spare in case the spare breaks or gets lost. Then, if you are able another spare in case the spare of the spare is out of service. Then you might need one for Sundays or special occasions, then a spare in case that one gets lost, stolen, or broken. You may want a multitool and flashlight for a more well rounded EDC. You better also get a couple fixed blades and a machete or two. Quality kitchen knives are also a must. Do you live in the woods? If so you need at least three types of axes and one splitting maul. Never neglect switchblades either if they are legal where you live, you may need to fight off a group of rowdy teenage gangsters. Zombie apocalypse a concerns? Don't forget a Katana. We haven't seen dragons in millenia but that doesn't mean they aren't lurking, waiting to come out and burn our cities and pillage our lands, so a 2 handed Great Sword would be good insurance against that.
So yeah, you don't need too many. Just the basics. Spend the extra money on really high quality sharpening gear, thankfully that stuff is nice and cheap... .. right?
There's a lot of good information on these boards, and another good natured friend is always welcome.