Now implementing this strategy is the most ok, because the current BTC prices are very low and can fall deep, so buy them now do not miss the opportunity.
I always believe that bitcoin still promises greater profits than altcoins. When the altcoin owner sells it to play to bitcoin, I agree. But having altcoins is also okay, because besides the price is cheaper so it doesn't drain capital, the benefits of altcoin trading are also good. For better investment, it remains bitcoin, because based on statistics, the longer the price of bitcoin is more expensive, meaning that the profit is greater.