Cars are a lot cheaper, taking inflation into account and before taxes (I am writing from Denmark) And they are much better. You can get a small car with ABS brakes, airbags, radio, air-conditioning, a fuel-efficient engine, etc that drives really well, for two months salary.

Tanks and jets are probably much more expensive. But some of that is because there is literately an arms race.

You need to pay for something that is much better than you had before or you service men will die because the enemy did get something that is better and more expensive.

I would love to own a classic sports car. I would happily pay for the extra fuels and take the risk of not having airbags, ABS brakes etc.

I am grateful that I do not have to go to war. But if I were, I would not want to do it a "classic" tank or fighter jet.

Now Ukraine is getting our old Leopard 1 tanks which have a lot of firepower and moves fast but have less armour than modern tanks, which might work because the Russians most have old tanks left.

But there is a good reason that European countries have bought Leopard 2 tanks that are much more expensive and 24 tonnes heavier.