I need to trust that decision relies upon you as a great many people will have what works best for them. Altcoin however is an exceedingly unstable market, and except if you are holding some really solid coins with help, I essentially favor exchanging altcoins. In any case, you can part your venture. Hold more rate in bitcoin, couple of other rate in ether, and split the lay on altcoins you believe you can depend on their future potential