If you look at charts for ethereum you'll see that bitcoin has gone up when ethereum has gone down. This shows that the money is flowing from ethereum into bitcoin. I think many other alt coins are doing the same, but the masses are nervous because of all the talk of a fork with ethereum lately. Maybe its a good time to get into ethereum now (under 300) Then when the news of the fork passes sell off for quick gains. However, it seems that this bitcoin run might go on for some time.