Today, the only thing that can be determined that an Altcoin has the future is when the value is rising and not dropping.
That's very simple to conclude that an Altcoin will succeed or dying or will be vanish after time because every Altcoin are relying on core dev, support, marketing, investors and supporters and without these groups - an Altcoin has no future at all...
absolutly agree, but some user experience when use that alt can be so much meaning. i mean if user have good experience they can share that to other user and that alt become mainstream people adapt to it