Okay, so I bought the game, thinking that, because of the price, if I get two hous of entertainment out of it then it is worth the money.
It has payed itself off many times over in two days.
Might not play it for a while after EMO rage quitting after an exploding green penis somehow spawned, or crept, into my house blowing up all my stockpile containers and littering my house, which is just a room in my mine, with litterally thousounds of blocks of resources.
I also realised that by using a type of block and pillar ming technique used in RL coal mining you can optimally extract almost all minerals.
The problem now would be to get my wife off of the game and back into Eve.