I’ve been looking for a dress knife for some time now. Same $200 limit as you.
Spyderco Chaparral has been a popular choice for many. I tried it. Great little knife. Makes a great small EDC. Very slicey if that’s your thing. Office friendly. The utilitarian looking blade finish and overall looks of the knife turned me off so I sold it. If you’re ok with the looks, this may be your knife.
I’ve recently purchased the MD Gent in black G10. Well made. Seems like a lot of knife for the money. Solid build, nice blade shape. Rock solid lock up with no blade play and will shake shut.
IMO, flipping a knife in an office setting is a no no. You can get away with this by grasping the blade with the non flipper hand(fingers) and gently depressing the flipper tab as you pull on the blade. It will look like you did a two hand opening. This is another great small EDC folder but it’s probably not the dress folder I was searching for.
I looked at a Valet but the action felt crappy and the pocket clip had exposed screw heads, attaching the clip to the knife, which made it very difficult to seat the knife all the way down in the pocket.
My only real advise, to both of us

, is stop being a cheap ass and buy a Mnandi.