Their margin was highest on used physical media, which continues to plummet. Physical sales are down from $13b in 2015 to $1.5b in 2025, while total sales of physical + digital went from $23.5b in 2015 to $60b in 2025. Physical media is a tiny fraction of current game sales, even if their margin skyrockets, they're stuck in a tiny kid pool of potential sales.
Not to be harsh on people who like this stuff, but reminds me of whenever people bring up how big vinyl record sales are now. Which is like, yea they're "big" just because it was a tiny market for the last decade and they're profiting mostly on nostalgia. Vinyl's not making some huge comeback, but it will probably sustain some niche resellers for a long time.