I happy with expensive, as long as its effective. You cannot use business words and norms to try and understand military power.
Economics, not business.

You can only fight to the degree and for so long as you can afford to pay for the kind of fighting that you are doing. Different kinds of fighting incurs different sets of costs. Paying enormous costs for marginal strategic results is not "winning". Ignoring fundamental economic trade-offs in selecting military tactics and operational approaches is simply stupid. This is not an argument for doing nothing, but to do it with eyes open and with a long-term perspective.

Burning a giant pile of money sheds light and heat and looks impressive but if it damaging your economy rather than your enemy then you are working hard to defeat yourself.