Their market is not infinite kid. There is a shortage of 4.1-4.5 consoles out there. If they never find another exploit, this is their market, and will be shrinking by console malfunctions... Maybe even destroyed when someone releases a softmod...
And i am seeing that you are not even good at math kido. They need to sell 5-10 flashkarts for every 3ds they could sell. The thing is, to who? The only people who could buy their flashkarts, are those with those consoles... So they cannot sell more flashkarts than the 3DSes, could they? All in all, they can make a much bigger profit from selling consoles that cost them nothing... See my point?
Go back to school, you have work to do...
A handful of secondhand 3DS sent to them, say 5, would net them about, say, 600 bucks. It's fairly obvious that the hardware of the Gateway itself is very easy and cheap to mass produce. I'd say they have a huge profit margin on every item sold. Your statement that "they need to sell 5-10 flashkarts for every 3ds they could sell" is total bullshit. and the conclusion you drew from all these bad assumptions is of course false as a result. you act like there aren't at least ten people in the world left who could potentially buy ten more flashcards they'd be able to produce or still have in stock. you present the idea that their potential market base is as tiny as only ten people as it as some immutable truth, whereas in reality it is a crazy idea that only exists in your mind. I'm done arguing with you, you're delusional.