Because, honestly, a Hulkbuster in the style of War Machine has the potential to be one of the coolest suits of armour in the entire MCU.
Because it's a Hulkbuster that's heavily armed with dangerous and powerful weaponry, which is exactly what you need when you're going up against Thanos and his armies.
But unfortunately the fact this set was revealed before the film's release means it's still rather disappointing.
Which is a shame, really, because it would have been quite the spectacle - even in a scene as action packed as the final battle.
We see a new version of the War Machine armour, but there's no time to focus on it in any detail.
The suit is bigger, bulkier, and has a different colour scheme, and that opens up new questions we couldn't possibly expect the film to answer.