If you are talking new monitors, I don't know how they could be the same price. Refurbished WG vs. new Vision Pro, perhaps?
I've purchased both (including a refurb WG) monitors, and I like them both. I believe the Vision Pro are imported from Korea, while I *think* WG does some part of the manufacturing here in IL (or they have a huge warehouse).
So far I haven't had any failures on the 5 Vision Pro's or two K7200's that I have bought. For me, it has come down to price, which is why I have more Vision Pros!