system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why hasn't the price of helium skyrocketed with its depletion?
gpt
Because no one is really worried about it running out.

There is plenty of helium extracted from the earth each year, a byproduct of natural gas wells.  However, it isn't usually profitable to capture it, so producers just let it and other gases escape into the air.

Once the price hits a certain point, producers will capture it, and the price will stabilize.