Many ICOs have their token sold at a fixed price vs. the ETH. For example: 1 ETH = 1000 Tokens.
So does it really matter if the prices of ETH/BTC is dropping?
If anything, then buying now you get more Tokens for the $, right?
I think this ain't the right time to invest in ICO's due to the volatility which the market is currently experiencing. The tokens are having below ICO prices after being listed in differemt exchangers resulting to profit loss. Investing after the ICO or once a token is already in the market, is more advisable but still depending whether a new token is promising or not.