You can do that as it will predominantly boost your earnings. This is because the ether price is cheap and can get very expensive as compared to bitcoin. So you see there is huge scope for the ethereum to rise in price and it can change many more folds as comforted to bitcoin.

Also, have you invested in the bitcoin when the price for it was in between 9-11K ? If yes then you can do it rightfully and convert your bitcoin holdings to ethereum one. Here you will have more chance to get at 1000 USD from the current rate of 460 USD. While for bitcoin it would be difficult to catch the prices of 15000 from 10000 USD. So you see that is where it differed at this situation. You can always choose the right path.