[2021] Changing boosted goods for diamonds

We should add that it is indeed impossible to change any players Boosted Goods in the game as @Thagdal has confirmed these are determined by which ones are around your space on the World Map. Your Boosted Good types are at positions 12, 4 and 8 and are one of the reasons it can take time to make World Map player movements, as you need an identical Goods position to move to.
Therefore the request to pay to change them, would not be at all workable due to this.  

The game is designed so that players have an even spread of Boosted Goods, to create an even balance. This is done at the point of the account creation and why this never then changes at all in the game to keep this fundamental balance.