Welcome to BF!
I agree with the members pointing you to trying some options before dropping $500 on a single blade.
You need to get a feel for what works for you, from the steel and it's geometry, to it's edge holding and difficulty sharpening.
You'll also want a less expensive blade to learn to sharpen on. You DO NOT want to learn on a super steel $500 folder!
Look at Kershaw, ZT, Spyderco, Boker, Cold Steel, and Benchmade. Try and touch a few handle materials and shapes at a gun show or brick and mortar shop. Most carry some reasonably priced models from these brands. Yes you'll pay more at a store, but your paying to handle the blade first and walk out with it.
Once you have a feel for what you like, then move on to more expensive exotic blades.
Good luck with your first blades!