Definitely, alts can be more profitable. From the current price, BTC goes to his ATH 5x. But for ADA, for example, it ATH more than 10 times. And I wait for a higher price for Cardano. Yes, I agree that it will not happen in this year. And at 2019 it will be very difficult. But alts has more opportunities to grow. It's a fact
Watch on the DACC as another example. Current price is 0.5x from ICO. If they will be listed on the big exchange I'm sure price will make 3-5 times.