I used a youtube video that made 7 obsid blocks per go, though you could easily design one to do more.
Redstone $6*7=$42
Obsidian sellprice $25*7=$175
With a diamond pick I made $133.
It used up 0.4% of the pick's 1562 uses, meaning it has 1555 remaining.
If each use yields 19$, the pick could make you $29,678 in it's lifetime.
With an unenchanted pick, this would take 4 hours to do. For every efficiency enchant level this would be sped up by 30%, or if efficiency V; 270%.
Maybe for the input, the output is fair and these things should be perfectly allowed.
Maybe not?
Thoughts?