Ethereum is nearing critical mass. It has broken the $12 barrier several times today and is nearing the psychological $1,000,000,000 capitalisation threshold. Bitcoin is now only 6 times greater in capitalisation, and 3 times greater in the volume of traffic.

#   Name           Market Cap           Price           Available Supply   Volume (24h)   % Change (24h
1    Bitcoin    $ 6,135,615,371    $ 401.47    15,282,950 BTC    $ 139,534,000    -3.81 %
2    Ethereum    $ 930,945,932    $ 12.01    77,534,245 ETH    $ 55,532,500    25.08 %

The other altcoins are trailing far behind.