We always hear bellyaching about peak oil, how we are running out, the need to conserve blah blah blah...
But helium is a resource that is far far less abundant, lost when used, already very expensive. There are inexhaustible alternatives for almost all our uses of oil, and second quality sources, but not helium. We just can’t keep wasting it forever on sky yachts. There are too many necessary things that are impossible without it.
I know of a rather large supply of helium, about 93,000,000 miles from here. Just have to separate it from the hydrogen. A few problems with heat, pressure, and gravity, but that is why we have engineers.