Gamestation are a subsidiary of game.
Realised this after I wrote it... research fail
Sorry but I've not seen a non-flagship title in a section other than pre-owned in ANY bricks and mortar store for some time. I've said it earlier in the thread - a lot of these non "flagship" titles have switched to online/digital distribution of some form already - it can, in most cases, cut out the publisher, and mean more money going to the developer. A good thing IMO.
I haven't bought a game on a disk for my PC for YEARS, and the reason I did so was because of the briks and mortar stores not selling them because we're all pirates, apparently.
Historically, PC games suffered from the ease with which they could be pirated. With Game's returns policy, you could buy a game in the morning, take it home, rip it, then return for a full refund that same day. It's harder to do that with console games.
I suspect that this happened not infrequently in the "old" days so PC games were non-returnable. Also, PC gamers tend to be more savvy when it comes to buying software and hardware and so would rarely go to Game to buy titles.
As for non-flagship titles... well, stores like Game would, obviously, push the new franchise titles hard but they also had plenty of other odd, lesser-known games. Perhaps that's changed in the last couple of years.
Another issue here, I think, is that publishers are trying to clamp down on second hand game sales. They think they are losing revenue and either want to put a stop to it or get in on the action themselves. Game/Gamestation have become an easy place to go to to sell and buy second hand titles and the publishers don't like that.