I bought the tab Pro for 249 from best buy a few days ago. I was originally going to buy a Nexus nine, but I couldn’t justify the iPad-like price. Also, I prefer the 16:9 aspect ratio. I currently have a 7-inch tab 2 and the only time I want a little more screen size is while watching HULU or other online video, and I just didn’t need the extra inch of tablet only to serve as black stripes at the top and bottom of the screen. I then started looking at the galaxy s 8.4 which was sitting right next to a pro 8.4. I played with both of them, and the only difference I can see was that holding them both side by side, the blacks were a little blacker on the tab S and it was a little lighter. Holding them one at a time, the only difference I noticed was that I liked the rubbery backing on the tab pro better. My wife has a iPad mini 2 (retina) and I did notice that it was a little smother, more responsive and faster than my Tab2. In that regard, the Tab pro is as good or better than the Mini.
I think the Tab S was 399 when I was looking. I don’t know what the price difference will be on black Fryday, but I guess the real question is whether the 1GB of ram, blacker blacks on the screen (both screens are really good though) slightly smaller bezels, and 1 oz of weight are enough to justify the difference. For me it was $150 and the answer was no. Ad in the much better feel of the faux leather vs the dimpled hard plastic, and the choice was obvious.