At this moment it is allot better to hold on to your Bitcoin because at the moment the Bitcoin price is not really that high so it would be a waist to be trading them now.
Wait for the price to rise again then it will be allot better time to trade them.
i think the only purpose to hold is wait for the price increase as th price of bitcoin is really increasing therefore no need to invest bitcoin in alt section or any where else just to hold it for the price increase.
In my opinion, investing bitcoin to altcoin is a good option to further increase your bitcoin holdings while waiting for your target selling price for bitcoin. There are people who want to accumulate more bitcoin in a span of time while waiting for it to increase. People will either buy more bitcoin which needs an additional funds or play in the altcoin ground where there is a possibility that their bitcoin will increase without adding additional money in the investment pool but rather have risk and face the possibility to lose bitcoin or gain it.