Hope you diversified.
Not in a hundred years will I ever convert even a single satoshi to Ethereum. You are just getting blinded by the rapid-artificial-pump-hype-growth that Ethereum is experiencing, and that's it. You are the typical coin hopper that just rides out each and every wave, and changes mood based on how much altcoins increase/decrease in value.
Market caps are a horrible metric; Electra, another sh!tcoin, has a market cap of $940 billion right now, that's more than twenty times the market cap of Bitcoin.
http://coinmarketcap.com/currencies/views/market-cap-by-total-supply/I do agree with you, ETH price increased too fast, a huge dump is expected, there will be "blood on the streets".
Market Cap is not a good measure indeed, what worries me a little is the upcoming Bitcoin hard fork, ETH will eventually pass, experienced traders are already profiting with it.