The alternative is to use extremely limited quantities of gas crucial for MRIs, chip making, metallurgy, and a few other high tech applications. But hey, pretty balloons.
When I was a kid, Dave Berry had a column where he made fun of the US Strategic Helium Reserve. This taught me an important lesson: when people make fun of what seems like government waste, 75% of the time it turns out to be really important. Not always, but you should look into it more.
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.