Yes, trading and others alternative coins are still profitable, because of them business name theres always be a sign of money and the invertors will always be profitable
because they in the good hands in this business.
yes we can see that still the investors in bitcoin and other altcoin currencies are increasing from time to time, therefore we can say that investment in bitcoin and other altcoin are still profitable and will hopefully profitable in future also, because the new era is the era of crytpo currencies for trading and investing your money there.