Originally Posted by sakichop
I like steam, I love gog, but I still want boxed versions the most.

If you have a look at the latest numbers by EA and ActiBlizz it's quite easy to predict that retail will become unimportant for them, and maybe even discontinued for some product on certain platforms, within a few years.
So in 5 years it's quite possible there won't be a retail version for certain products.