Hope you caught my point.
Hmm this will depend upon several factors. The value of cryptocurrencies depends upon the people who are willing to buy such coins. Given that cryptocurrencies (bitcoin to be specific) is the so called 'digital gold', if people are willing to purchase it at a given price, then its value will definitely increase in the future. Again, we are comparing a tangible product to an intangible coin in which both have significant value in the market.
Most traditionalist investors prefer gold or stocks as an investment but the new age of investment, which is cryptocurrencies, is gaining its popularity rapidly.
Investing into cryptocurrencies is still a double-edged sword compared to gold. The risk is relatively higher but the yield is also high. In gold, although it is generally safer as an investment, its price is not that volatile but the returns are average. I would still advise to invest into both if you have the resources so you can maximize the potential income you may receive.