Just saw this on sale on Amazon (was actually trying to price check for the DWF against a negotiated deal I got directly with the Dell rep) and it seems like a crazy good price.
It's the OG version with the hardware G-Sync unit which some people may want; just keep in mind that this version the fan can get loud and also you can't update the firmware yourself (due to said G-Sync unit) but apparently it'll run 10bit colour at 144Hz as opposed to the DWF only running at 100Hz unless you hack it with CRU.
Edit: in regards to fan noise I was simply regurgitating info I read/watched from a few reviews etc while researching but it seems like there're plenty of happy owners who said fan noise was not an issue!
matching JB