system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU - Iron Man] How much money has Tony Stark spent on his Iron Man armors, between research, development, replacements, etc.?
gpt
I think it depends on how much you consider his time worth and how much you consider Jarvis time worth.   The physical materials of the suit aren't that expensive and he did almost all the R and D himself with the help of Jarvis.  He also had his own custom fabrication machinery built so he can prototype for just material costs.