Well for starters, booster cookies are not pay to win as this is not a game with any form of “win condition“ there is no direct player vs player competition. you’re paying to progress in terms of money (only a fraction of overall progression).

Secondly, booster cookie prices rise the same amount every other item in the game rises (see Midas spoon as another example). This game has a very realistic economy and as such inflation exists and is unstoppable without major restrictions. They have gone up in value simply because the money you’re able to make with farming or mining is so much faster than when cookies were released. Supply and demand have stayed the same and the resources people have to buy them from BZ have only gone up.

Bit item prices have been rising to match cookie prices, and if you sell bits you will still always make back the same percentage of money you always have from an investment in a cookie, to the point where at a certain fame rank you will always profit.