Counterargument: everything is limited, and all joyful people are imbeciles to some extent

Well, the half lives of the stuff that produces helium are generally above 500 million years so we'll still be making more of it for a very long time, but the reserves we've found trapped in geologic formations certainly are limited. /s

I mean it is expensive, it's just the amount required for a balloon is insignificant and thus seems cheap.

As a diver who uses helium I can tell you it is, compared to air, so much more expensive they actually charge me for it (rather than just rolled into the cost of a dive) - to the sum of about $300 a dive - depending on depth.

Good news everyone! Our national helium reserves have been privatized! Expect rising helium prices soon.

What could go wrong?

I mean other than that...

When I was in school decades ago, my science teacher brought in a big balloon filled with hydrogen and lit the string on fire without telling us that it was filled with hydrogen.

I could feel the explosion in my bones. It was neat.

I’m not sure you could do that in schools today.

They will demand it or else poor Kayla'lin 'da Leeigh Lynn Lee's princess party will be ruined.

I'm afraid it's already in use by politicians.

May I suggest food waste from someone's garbage can? I hear that works.

Nobody's stopping you!

I mean too much Helium isn’t a problem. It’s one of the few (only?) elements that will just disappear if you don’t do anything with it.

It’s light enough that it rises to the very tip top of the earth’s atmosphere and is then stripped away by solar radiation. That’s why is a depleting natural resource, not because it’s burned or used or anything, but because it just escapes.

In a perfect world stick it in a secondary reactor and make lithium. But that's obviously even further off than hydrogen fusion.

An MRI scanner in every home!

I just work here, sir. I'm not a scientician.