Lol to the Victor comment.
The Limited One doesn't just have the Bicycle logo on it, it is also foil and embossed which is significantly more expensive at lower costs. I've looked into other companies for printing, but one of the bigger ones does't make their tuck boxes the same way from what I understand. The real expense from printing anything comes from the setup costs which is amortized over the size of the print run.
In your example, 4000 decks at $10 wouldn't be much more than $35,000 for 2000 decks at $17.50. In fact, it might cost more in the long run because of freight fees, inventory fees, and shipping fees. But yes I understand what you are saying, and that's really the biggest trick in any business is finding that magic price point that is the equilibrium between profit and quantity. The difference with the Apple store is that once production has been done, it scales up at that price point without material or shipping costs.
As for the price creep, I completely agree. I've said it a few times, I think the playing card market is going the way of comics in the early 90s. Foil embossed covers, multiple cover variants, limited edition cards, special packaging, die cut covers, etc. It's not a good thing but companies will continue to do it as long as it's profitable. I think part of the problem is the same one that comics had, speculation. Many people are buying bricks of decks to put up on ebay at a profit, but when everyone starts doing that, there's nobody left to buy them and the bottom drops out of the market.