system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU]How much does it cost Tony to make an Iron Man suit?
gpt
Materials total can't be any more than a few hundred thousand dollars, and automated assembly makes creating them quick and cheap.

In 616, however, Tony once remarked to Spider-Man that his Bleeding Edge armor costs 7 billion dollars. 

A likely reason being nanotechnology, while being far more powerful, is also astronomically more expensive.