I would for sure buy a basket full of various altcoins. ETH might go to $1,000 and it might not. Etherium might be silver if Bitcoin is gold but that might not always be the case. See for instance the cryptokittes. They have clogged up the network and shown just how vulnerable the chain is.

If BTC tanks 80% do you still ETH will gain around 150%? If that happens it may actually drag down most of the altcoin market with it including ETH. We are long overdue for a correction. Entire market cap is now +$430 billion. The 15th of September it was around $100 billion. An increase in total of 330% in less than 3 months.