The fundamental issue here is that Cromcrom believes his purchase, by virtue of being a per-release "Early Access" buy, included an implicit agreement that there would be no lower price before release. Assuming terms of sale that are not specifically stated is foolish.
Really it's a good life lesson to learn at the eight dollar level. It could be much worse. "I assumed the property I bought went all the way back to the tree line." "I assumed the car was running and in good shape when I wrote the check" "I assumed you picked them up" and so on.
You're entitled to a copy of the game. If you wanted a price guarantee you should have looked for on offer with that bullet point.
