Is it still worth buying Bitcoin?

Usually, when BTC crashes, altcoins crash even more. In the last 24 hours, many altcoins did better than BTC as shown below (24 hr variation vs. BTC):

Among them, XTZ, DOT, LINK, BTCST, INJ and YFI performed pretty well, with YFI making nice waves bringing it towards 1 BTC.

Therefore, it seems that times are changing, since some altcoins are becoming safer than BTC. Is the…