To put things in perspective, 200 years ago there were no photos in existence to paste onto walls. So what we're feeling is a cultural nostalgia for a very short period in humankind.
When the characters have their digital glasses on, the guy's apartment is full of pendants and shiny decorations. But you can see that without the glasses, the walls are bare.
Photography is new, but humans have affixed art to walls for millennia. It would be insane if that ended.
After playing with user interfaces like Bump Top, the idea of just hanging an image somewhere doesn't have the same feeling as having it physically there.
