Unfortunately, especially for Samsung, this is most peoples' feelings, as well. For tablets, they need to figure out how they can undercut Apple's tablet pricing (not so easy when you're trying to maintain their huge profits). The fact is that Apple owns the premium tablets and Google owns the bargain ones.
Currently, I have the Galaxy Note 8 and the Nexus 7 2013. My preference is definitely the Nexus 7 (it's partly due to the fact that I have the note 3; I don't find enough differentiation). Also, the Nexus 7 is so pocketable and the screen stands out. Soon, I'm going to sell the note 8. Sadly, the prices have really dropped (luckily, I got a great deal on mine so I will come out close to even).
I would like to get the 10.1 note 2014. But, right now, they are too expensive. As with most Samsung products, their resale value drops way more than Apples. So, in a few months, I can probably get one for almost half the initial price.
As for these "pro" models, I'm not sure yet what makes them "pro"?