Seriously, the concept of weighing the cost of an action vs the cost of inaction was not... exactly invented by Eve Online players. The entire point of warfare is to make waging war more expensive to your opponent than to yourself, whether in terms of men, materiel, dollars, or popular support. And the concept of a Pyrrhic victory is likely as old as war itself – even our very term for it derives from a battle fought 2300 years ago!