Right now obsidian doesn't provide any income for miners. I would like for that to change. Talking to the mods i have determined the main reason is because "it is basically free money." In comparison to other jobs miner brings in a very small amount of income with farmer providing the most. Though it is possible to make an obsidian grinder i would say that it still is ok to have a value for obsidian simply because of the resources and time it takes to get obsidian. Without enchants mining obsidian takes forever which fixes the issue with time and if that isn't enough it requires one redstone for each obsidian and a diamond pickaxe just to collect it. So collecting obsidian is a time consuming task that uses tons of resources and has very little benefit. For instance non stop mining on an obsidian grinder with obsidian at 5coins per block provides about 383 (not including time it takes to reset the grinder.) that would equate to 1915 coins per hour. a rough estimate puts farming at around 3k per hour for nonstop farming. This proves that obsidian grinders only allow you to "farm" obsidian for even less profit than a farmer who uses virtually no resources to collect their crop. (Farmers get money from placing and breaking crops and miners only get money from breaking blocks. meaning it is even harder to get money.) In effort to balance them all i would suggest adding a monetary value for mining obsidian. Pros and cons of adding a value to obsidian- Pros: Miner isn't a weak job. Cons: nothing. pros and cons of leaving it how it is- Pros: nothing Cons: Miners can't gain any income off of the hardest to mine block in the entire game.