You will only get frustrate when all of your coins has no price in the market. Yes, bitcoin is one of the most valuable coin that you should buy or invest all you have to do is always be patience all the time and wait for the right time to sell or to trade when it comes to your coins.
Portfolio of most investors has 60% of Bitcoins at least, and this is just some statistics. Why should it frustrate someone? Altcoins are not going to die (I do not mean shitcoins), and some of them will bring a very good profit.