Trading and speculations is one thing people do out of it. This is not an argument proofing it is no solution at all.
Basically you have to know that the plattform is still under development so currently the token is to its major part just subject of speculations.

Another thing to understand is how the mechanism of price discovery reduces the effect of shortterm hypes.
This is - when there are good news and people notice, "oh bancor is cool" and like 100 people decide to buy in.
On a traditional exchange market this will have a much greater effect because of the sudden scarcity of bancor tokens available. But for the bancor tokens they are always liquid and you may buy them anytime for the actual price without having a counterparty who wants to sell it or has then stashed. This means no scarcity less short-time hype driven pumps.

So to this problem about liquidity it indeed is a solution.
And then there is a huuge potential what those users may do with the tokens to get their economy going - lime the mena village :)

Those use-cases are up to your imagination and I really recommend you to read the whitepaper, to have a base for this imagination ;)

https://www.bancor.network/whitepaper

And don't forget they are no simple tokens... It's a smart token. :)