I think you're right on all the points. This is a medium of exchange that offers decentralization, speed (hopefully to levels of Paypal in the future), and much lower transaction fees. Although there is hype in the financial world and the media, there hasn't been enough market acceptance. Plus, the economics may slightly be different from fiat. We don't know how the governing bodies would react to the evolution of speed and efficiency so we can only say that this is the very beginning. I believe there is around $90 trillion USD in fiat circulating the globe. We've barely touched 0.01% of its full capacity.
Now remember, bitcoin's core proposition is solid, but there are more evolved cryptocurrencies now showing. Be wary of where you invest in and always keep in mind of the risks involved.
For instance, if Ethereum never showed up, bitcoin would have been at least $5,000 worth. But it did. May we all be forever vigilant of the industry today. GLTAH.