GAME had the issue of not having closed stores which they either gained as part of a purchase of another chain (this is where most of the duplicates came from, EB Stores Group purchase GAME in 1998 and rebranded the entire group to GAME in 2002 but kept most of the duplicate estate) or as a result of new store openings in new shopping centres. There remains a market for this sort of content but competing for it with yourself was obviously problematic.
Years ago when competition was stiff multiple stores made sense. If a customer was not near a branch of GAME and wanted a game they could simply go to Gamestation, or Virgin Megastore, or Choices, or Woolworths, or HMV and you lost the sale. Having multiple stores was therefore of great benefit.
But the market changed and the main competitors vanished. Now if you wanted a game you....errrr... Went to GAME. So all the multiple stores did now was increase overheads.
There is still a big market for physical media. Contrary to what this forum thinks most consumers are not like them. Figure released today show that last year 75% of sales were non digital. That's down from the past but its still the vast majority. It will continue to slide but not at the rate some people think.