I do not think we can get a huge profit in just over 3 years, compared with a mutual fund that takes at least 10 years to get 200% profit or gold that takes more than 25 years to get 100% profit.
WEll, I believe that investing your money in Ethereum will give you a better amount of money here. Bitcoin can not easily increase 100% anymore. But ethereum can easily x3 of its own price. Look at the current price and you can see the potential inside Ethereum. Moreover, bitcoin is soon becoming a form of investment and it will have no use in the future but to become a online property
Bitcoin is already an investment for majority of people and now they are not willing to use it as a currency which they were spending in the past and now the main intention of people is to save their bitcoins for a long term to make huge profits from it but the fact is that if you want to make best profits from bitcoins then you need to hold it for a very long term and on the other hand ethereum can give you best profits in quick time.