Completely agree with you, mate. IOTA has already found a use case for the mainstream world, so I don't see why Hedera Hashgraph can't do the same. After all, Hashgraph is based on the same technology (sort of) as IOTA. It's believed that DAGs are the successor of Blockchain technology. With improved performance, and lower costs, DAGs bring a whole new era of payments within the mainstream world. Hedera could simply make partnerships with several banks and mainstream companies in order to become widely adopted across the globe. While I'm not quite fond of Hashgraph's centralization, it's much cheaper and faster to use than most cryptocurrencies of today. The competition will be fierce as DAG-based cryptocurrencies like Hashgraph, IOTA, Nano, and even Constellation, battle their way towards becoming the #1 payment system for mainstream finance.

As of now, prices per Hashgraph are still relatively low (considering its true potential) across the market. It's still in its very beginnings too. So we'll have to wait and see what happens within a couple of years from now, as the cryptocurrency develops into a platform solid enough to rival its competitors within the mainstream world. "HBAR" may be undervalued, as it's one of the fastest cryptocurrencies in existence today. But no one can tell with certainty what its price will be in the long run. Hopefully, Hedera Hashgraph would be here to stay for many years to come. Just my opinion