That's correct and having a fixed supply helps to increase the price of Bitcoin over time, I know it might sound ridiculous but in my point of view, limited supply has an effect to the value in the long term. Even if the mass adoption of Bitcoin will happen in the future I don't think that it will be used as a currency because the volatility is still there and it will continue to fluctuate and most merchants and service providers do not like a payment method who constantly and dramatically change its value at any time.