Similarly, I'm not entirely sure that the "Pay with Bitcoin" approach, where an exchange converts the currency for you is that far removed from this idea. Before Bitcoin, my options for payments were pretty limited. Either credit card or Paypal -- both of which are convenient in the US, but at the time very inconvenient (to the point of impossibility) for people living in poorer countries.
I've read the early mailing list archives for Bitcoin to see if I could understand Saotoshi's intent in creating Bitcoin. Interestingly, he doesn't seem to discuss it much at all. It seems to be all about the tech. I think the "bitcoin is going to replace fiat currency" narrative is something that was adopted by overenthusiastic people who arrived on the scene later.
I think Bitcoin (and potentially other digital currencies) still has a number of hurdles to get over, but it's succeeded at wresting the payment industry from the banking monopoly (plus Paypal) far better than I originally suspected it might. I certainly hope it can continue.