Speaking as a businessman, that is not a sustainable model, especially for a small company or an individual. That is too many SKUs for starters. Also, the reason the $150 big box is available for $150 is because they are contracted to print a certain number of units.....usually in the thousands. So they get a scaling discount based on volume - good ol'
"economies of scale". If you were to only print 10 copies of the box, the game likely will cost $500-$1000 for only those 10 units, maybe even more. They will have to be hand-made because no factory is going to do a production run of 10 units when they can run 1000s of units for another project and make substantially more money for themselves.
With the way you have it listed, the game maker will have zero idea how many of each SKU he/she will be able to sell. Either he will have to try to produce hundreds to thousands of units, and hopefully sell through.....or produce units at individual quantities, and at a severely marked up price, therefore earning no profit.
This is why KS is successful for board games. It gives the designers a way to more precisely gauge how many units they can sell, so they can go to the factory and order a specific number of units they know with certainty they can sell. The factory can give them an accurate cost, discounted based on volume. Can you imagine trying to do this before KS was a thing? You would have to risk your own money, GUESS how successful your game is going to be, and hope that you could sell all the copies you made. Otherwise you would be stuck with a huge inventory and have to sell all remaining copies at a loss.