I usually buy the Dr Slick knock offs (probably the same ones Dr Slick buys) for about 1/2 the price as Dr Slick sells them for. Yes I own a few Dr Slicks as well. I have a few other ones including 1 or 2 Fiskars hanging around somewhere. I've also bought medical scissors too and they seem to be just as good and just as inexpensive as the Dr Slick knock-offs that a lot of fly shops carry. Too many scissors (maybe 16 of them) I've collected on my fly desk over the 30 years now I've been tying. I always like the scissors with larger finger holes so I can drop them quickly on my lap while tying. Small blades, longer blades, really short and fine, razor sharp and smooth blades, serrated blades, straight, curved, etc. Many different kinds. I sometimes look at them and think... "I could be the next Edward Scissor Hands!"

Lol Really though, you can away with just 2 pairs, but I could literally down size to about 5 pairs of scissors and be happy with that.
Funny side note about that. At one time, I lived about a 20min drive to the house where they shot the film of the outside of the house for that movie (here in Florida, believe it or not).
I have more scissors than I actually need. I've priced out how much it is to professionally sharpen them and for the cost of that, I can buy a new knock off. So I use the ones that have lost their razor sharp edges for things less important and use the newer ones for the finer work.
One thing to note for those newer guys coming into fly tying.... don't cut wire or lead wire with them, especially the wire in EP type brushes, or you'll ruin them. I keep a really small and sharp pair of diagonal wire cutter, handy, specifically for that.
I've also found that using serrated scissors are best for deer hair trimming and sometimes I'll use it to trim other fibers like EP style baitfish bodies and brushes. The "serrated" blades helps to hold on to the fibers so they wouldn't slip off the blades while cutting. So I keep a few pairs just for that too. Here's a cheap pair I found for the discussion purpose, but not necessarily the ones I have.
https://www.ebay.com/p/22004239104
I ran into a guy I know that I haven't seen in a while that has an entire knife/scissor sharpening business set up in his garage and told him I was going to bring a few knives for him to sharpen for me (to see if it's any better than what I do with them, with the kit I have). So this will be a good reason to bring him some dull scissors I have and see what he can do with them and compare the cost. I know I can't sharpen them myself the right way cause you need special jigs for that, which I don't have. So it's cheaper for me to just pick up another pair every so often, than buy a jig set and have the right equipment to do it right. Anyway, I'll compare the cost of having them sharpened vs buying a new pair and report back.
Ted