https://www.aspistrategist.org.au/jet-fighter-costs-a-comple... In 20 years they'll manufacture just one plane, and it'll cost a trillion dollars, if current trends continue to hold. Also it'll the weight of an aircraft carrier.
This Much was made of the fact that, once modern western equipment arrives in UK, it will wipe the floor with soviet union relics that serve in the Russian army. Instead, it has hardly made a difference. The difference in price, even of simple non-mobile artillery pieces, is huge. Because they are so expensive, we cannot field as much equipment, and we've been telling ourselves that our modern equipment is worth mult…
There are caveats, like: a tank that hits a mine is going to be disabled one way or another, and a disabled tank won't survive too long if it's anywhere near the front.
The problem isn't the quantity of equipment, it's the quantity of munitions. For example, Ukraine has only 30 or so HIMARS units but that's more than enough to fully consume every GMLRS munition we can provide them.