What i think makes the value of the bitcoin is that it is the original idea, it i think it will always be the base value of the others blockchains.

That is why so many people call it a store of value and compare it with gold. Nobody trade with gold, but it was the base of today money.

My guess is that in the future, it wont be bitcoin that will be used. A lot of new coins do transactions better than BTC, but BTC will always have its value.

Just like gold.