I just hold, everytime I tried to play the market I lost some coins.
Its a good idea to Buy ALT coins right now, the price value of almost all coin is with in our reach, the price value is low. But before doing such move you have to prepare your home work, do market research, evaluate the fundamentals, the behavior of investors to the said coins, price market status, then make a comparison to the previous month or year with the same situation, consider the your timing to invest. I am optimistic that the market will recover soon or later, the growing number of crypto investors are unstoppable in the trading market. So, make up your mind before its to late to buy your coin (Bitcoin).