That depends what benefits you get from it. Efficiency is a fraction: cost over benefit. You can't just whine about cost and use the word "efficiency". That's c

That depends what benefits you get from it. Efficiency is a fraction: cost over benefit. You can't just whine about cost and use the word "efficiency". That's cost, not efficiency, and you're completely ignoring the entire point of money in the first place: to be spent to achieve benefit.