I don't really care about having a lot of memory, 16 GB should be enough for me. as i said my intentions first were not playing steam games but if i bought the shield i would. I am talking about games like Hearthstone, respawnables, MTG and so on... And 16 GB should be enough for that. There is also the display on the Nexus 9 witch is much better than the shield.
Thanks for the reply though, i will consider your opinion.