Ether price is in a downtrend channel. Only the current DAOHub ICO, what requires to buy Ether, is responsible for the price increase. Wait until the ICO is over and you will see that the price is declining again.
Why would it? The DAO locks in a good chunk of ETH that can only be used on Ethereum. If anything it provides support to the Ethereum blockchain and future dapps. ETH has much more use and utility than BTC which is simply digital gold. A slow confirming one at that.