Sometimes this discussion arises, and as I remember it, there are two kind of "Helium" that should be discussed.

The first case is the common helium, used to fill up baloons and so on. It is mixed with many others gases, it is common, the price is very low, and despite being used to many things, it isn't running out, supplies aren't getting empty.

The second case is the "helium" as a pure gas, composed by helium and nothing else (except for traces of other gases). This is rare, this is expansive, this is hard to get (and it costs a lot to extract pure helium from the atmosphere). This is the helium that we are "running out", despite being able to extract it from sources, as the price might and will increase.