I feel that the prices of Mob Spawners in /shop are extremely high compared to what players will usually sell them for. ie - 175k for a Zombie Spawner in /shop, and 20-40k (usually) on ah. It's very expensive to buy spawners when players are not selling them on ah or elsewhere. Especially since all Zombie Spawners really offer are exp (with rotten flesh and such being something you actually have to dispose of) I don't believe that their prices should be this high. Skeleton Spawners offer lots of bonemeal which is great for people that use cactus farms but since lime dye's price is at one of it's lowest prices this map I disagree that their price should be so high. Blaze Spawners are mainly used for getting lots of blaze rods for auto-smelting (almost always cactus) and with Cactus Green's very low price I also feel that this price is very high. Spider Spawners offer eyeballs for brewing and in my opinion this price is actually pretty fair, but Cave Spider Spawners actually cost more than Spider Spawners and they are hard to manually grind because of how they poison you so that leaves auto-grinding. When Cave-Spiders die from causes other than the player all they drop is string (just like Spiders) and string's only use is in cactus farms, which aren't worth making at all, again because of the low price of cactus green and lime dye. My suggestion overall is to adjust these prices to be a little bit more fitting for what the mobs drop and the mob drop's actual value/use.