I'm not failing to take that into account at all. It's irrelevant. Yes, it's relevant from a business sales standpoint, but my statement was about base gross profit on items that ARE resold, in response to the statement made by Diatribal Deity.
It's assumed that everything we're talking about sells. There's NO way that we can account for non-selling inventory (new OR used) or the losses incurred by discounting due to non-sales in a basic thread like this. That's some people's whole JOB....to figure that stuff out

In fact, if we included all non-selling inventory, I'd bet that Gamestop is probably well into the red just from that alone.
All I'm saying is that WHEN they sell a used item, they GROSS 300%+ on AVERAGE above what they paid for it. I'm not an economics major or anything.
And profit in the NEW market is not at all guaranteed either. How many times have we seen games that have been heavily discounted just to get a LITTLE of the money they spent on them back out. Those are being sold at a LOSS. We can't factor in those costs either.
Just saying, there's a MUCH larger profit margin (if you want to say potential profit margin, that's up to you) in used than DD was stating. And a much smaller one in new games than most people realize. It's all about volume for both, but especially for new.