Who buys Helium?

I'm curious to know, who exactly are the buyers of Helium? Are they primarily individuals looking to invest in this cryptocurrency, or are there specific groups or industries that have a particular interest in it? Is there a growing demand for Helium, and if so, what factors are driving this demand? I'm also interested in knowing if there are any challenges or limitations that potential buyers of Helium may face. Can you provide some insights on these questions?