I had not checked coin prices since mid July and I sort of lazily followed the movement down below 6000 on BTC. It took me until 4500 to check the network activity to see whether usage has significantly changed. Seeing that was not the case, it was around 3800 that I looked at coinmarketcap besides network statistics. The first naturally did not reveal anything extraordinary, but I was looking on BTC dominance that had remained flattish. Network activity on the other hand was underwhelming for BTC and more dismal for the rest.

Then I remembered that in the months whilst not paying attention, I was never offered to pay in a coin or paid out in one. I then checked an online map of businesses accepting coins around me – few and mostly neighborhood fiat gateways and some cafes. Then I was at the same place as months ago: Everything is great and exciting in this space but the price level just doesn’t feel comfortable.

So my killer app is similar to your thinking – a lot more and expanding actual usage with a price that feels right for that level of activity.