but that table is a pretty good deal
how long will a private mine last till they are deteled they work the same as tents ?
Last time i checked, you can't use this table as a workbench. (what would be great)
And you can't invite anyone, just transport followers.
If you mine alone, you could get 500 Minerals and 500 Iron Ore or 200 Minerals and 800 Iron Ore, etc. After the resources are depleted, the location will remain, i think.
Otherwise, it's basically your second own location besides of a tent with a tool shack, and a water pump as the extra. There's Gecko Mine-sized maze inside the mine, which you could use for PvP training.

Not such a great investition ATM, if you ask me.
Don't know if the game deletes the old mine if you buy new one.