As the name suggests, just add more decor. blocks to shop (like bedrock) and just remove the prices of items in /shop entirely (just make it give 64x of the item when clicked automatically or make it where you can get more than 64 at a time to potentially your entire inventory for people who want lots of a certain type of block) as the prices are useless because what's the point of items costing dirt cheap if people-- no matter what part of the season it is-- can buy stacks of any type of block they want (even on day 1 of release!!!)