Everyone knows that all manufactured products are sold for the highest price a consumer in any given market is willing to pay for them. Production costs have little to do with a selling/asking price point. If you think manufacturers of anything are not selling for the highest price someone is willing to pay for their item, you are delusional.
If it costs JJP 4K to make a game or even 6K, or 7K, they are going to price those games at the highest price that someone is willing to pay. You also have to realize that JJP may have hired more people to keep up with demand... That still does not change the "max price people are willing to pay" model. If you honestly think a company is going to sell an item for 1K or 2K less than they could sell it for as a "favor" for their customers or, to "help support the hobby", then you are an ignorant consumer.
Preordering is always a good way to hype up a release and keep the price point transparent. Not just true in pinball.
I don't have a horse in this race. I buy what I like but always choose to wait a few years until a "new game is announced and hyped up" by some company and then buy that game I really wanted that was new 3-5 years ago. There seems to be a ton of great titles that come up for sale directly after a new title is announced. That's when you can get the best prices on "newer" games. People are willing to sell at a loss or have a fire sale to get the latest and greatest toy on the block.