Physical... digital... I've reached a point I don't really care one way or another.
There are some titles I do have a preference and go for physical if possible. The new 'Wolfenstein: The New Order' I grabbed physical as I've got retail cases for every Wolf game out.
I also grabbed a retail case of 'The Evil Within' because the boxart is awesome.
But, Shadow of Mordor, Alien: Isolation... digital. And I'll probably get FarCry 4 the same way. Right now, while I love my collection, I don't mind getting games through Steam.
I live in such an isolated area that unless I want to order stuff online, I simply can't get physical copies.
So, if I'm going to order online... why not just grab it through Steam and save myself some shipping fees and have it on day one?
The only game I can see me buying a physical copy of in the future... is the new Doom.
Past that, everything else I'm interested in will just be digital.
Again, I love my collection, but... to me, in my eyes, my collection is complete.