It’s nice to not be at the mercy of other players for your income, even if it is at a lower scale.
So I made these spreadsheets for minting essences a while back based on an unpowered minter output. So a fully coiled minter would end up with better coin results per item. With that being said, the price per item breakdown to me is where you could buy the item at and still convert it to essences and make a profit on the process using a fully powered minter.
On the other side of that, if you are selling any of these items at a lower price than the price per item in these lists, then you are possibly leaving coin on the table as the saying goes.
Obviously many items on the list are worth far more as the base item than they are as minted essences, but I have seen large qty’s of things like fresh blood for sale at 3c each, which even with an unpowered minter could turn into 5c each (so 2c profit per item + the exp for converting it) or even more with a fully powered minter.