One of the biggest game stores had recently closed it's doors and shut down, but was saved by merging with another company and again is closing down, some of the small time game stores have also started to die out. I wouldn't like to open up a store only for it to close down with in five years like my friend's store did.
It's probably console gaming that's dying, which such stores capitalize on. With internet services like Steam, computer gaming is exhibiting no sign of digression. In my opinion, console gaming is a dying gimmick. Computer gaming will continue at a steady pace or even increase as console gaming dissipates. That's my prediction.
What I'm suggesting is you should maybe try getting into computer game development? If you're interested in that area.