After few years bitcoin price maybe $5000 or already replaced by other currency.
even if the price of bitcoin is 5000$ still not enough to replace the other currencies we all know,
if we accept bitcoin as a currency, bitcoin must have a fixed price.
The price will always be not the reason to replace other currency but the value of the a certain currency, the value where we can benefit from using it and can beat the features of other currencies, with bitcoins we can transact fast and safe, the charges is really minimal and that is one of the essentials of bitcoin that is worth patronizing for.