While I consider the "store of value" narrative to be a bit of a lame copout ("we failed to make bitcoin feasible for microtransactions so let's invent this other quality for it to have as a replacement"), so long as anybody at all is still using it to conduct "online payments sent directly from one party to another without going through a financial institution", then its not a failure. If every last bitcoiner became a HODLer, at that point I would consider it to be a failure.