It is a whole lot easier to hedge between cryptos. I would like to eventually see a peer-to-peer crypto solution for exchange directly between different cryptos. I still think that paying attention to BTC/USD speculation is important if you are using alts just for beta plays, but once you take out that correlation I think there is still nicely manageable risk between cryptos. Then you don't even have to worry about being too heavy, or too light USD/fiat at any given moment.