This means nothing. You still have six people paying over $200 for a game where the publisher ends up making $25. Gamestop should not make 3x as much as the developer.
only one person can have it at a time
but not your numbers; you've left enough variables undefined that they don't actually mean anything
I'm using pretty well know estimates. Publishers make about %50 of the retail sale value on average. Gamestop makes about $10 on a new game. They make about $20-25 on used games.
I made that example to illustrate a point. Most people who buy used games use the "But I can't afford new games!" defense. Fine, but that's what pirates often say. I'm pointing out that it's better for the industry for you to never buy another used game, as they make as much money on used as piracy. That is a fact you cannot escape. Either buy new, or go grab a torrent.
Don't like that used games are the exact same thing as piracy? That is not my problem. The people buying used games are contributing the exact same amount of money into the publishing houses as if they just downloaded it. And when they buy used, they have less money to buy new.
People who say "If you can't afford to buy a game, you shouldn't play it" have a fair point. Especially when one considers the plethora of quality free games and sub $10 games on GoG and even Steam. But it applies to used just as much as piracy. Buying a used game does not one more thing for the industry. If you have $20 to buy a used game, then go hit up the year old discounted new games. Failing to do so because of a sense of "I want to play the newest stuff and screw the developers" entitlement, is a pirate mindset.