Furthermore, Sony Pictures is huge, so selling movies is absolutely part of Sony's business as a whole.
It’s not all one Sony. Just like Samsung or MS divisions fight and get into spats.
Consumers are lured into walled-gardens all the time - consoles, app stores, hardware. Where would you suggest someone purchase a digital license for a movie?
From a video game store is the part I find odd. I get walled gardens. Not this one for this purpose.