People buying physical games don't need gamestop to keep buying physical games. They can buy them at target or walmart when they are there grocery shopping, or ship them for free from amazon. People buying used games and systems also aren't generally going to turn to gamestop and their overpriced junk, like they would have 15 years ago, now that online marketplaces, both local and national, have matured. Consider used games with an active market, like Super Smash Brothers Melee which still commands $50 used, aren't even sold at gamestop anymore and haven't been for years. They don't have anything older than the previous generation system, and of that past generation they will probably not have great inventory of popular titles, so retro buyers aren't even going there to begin with. It's dead retail walking and they do nothing unique.