You will soon see most of the money not invested into Bitcoin, flowing back into it. People buy Alt coins and then make some profits and then the bubble burst and they buy more Bitcoins.
That's the old paradigm. I'm not sure it is the new one. The jury is still out on this one. When you see that bitcoin's crypto market share at this moment is below 60%, there's not *necessarily* a reason to flee back into bitcoin when the bubble bursts, because the bitcoin bubble might just as well burst. Alts used to be gambler's assets with a safe heaven bitcoin when bitcoin was essentially the de facto crypto monopoly with more than 80% of market share. When things level out more, the obvious choice for safe heaven in bitcoin is not necessarily the case any more. Although it still may be.
But in a truly speculative environment, no systematic laws can prevail, because if they do, they are neutralized by profit taking. So the systematic bitcoin-as-a-growing-safe-heaven is something that, by the time it is established, should be neutered by speculative forces in the market. (essentially, that's the efficient-market-hypothesis).
Why? Bitcoin has the biggest merchant and user network of all the other Alt coins combined. < Name ONE big merchant that accepts Alt coins ? >
Nobody cares about merchants accepting coins, or other applications. This is just pure speculation. Most people buy bitcoin on exchanges, and sell it on exchanges. And a few geeks buy an airplane ticket with bitcoin, while they could, in most cases, also use their credit card and get an insurance on top. This is just the kind of story that "justifies" the speculation, but is by no means what drives the market.