If you invest in ICO at this time, then surely your 3 ETHs will only be 0.5-1 ETH after the ICO ends and are exchanged. I advise you to keep ETH or buy top altcoin, should not invest in ICO in this period because it will certainly be a loss
Yes, I completely agree with you. Investing into ICO is very risky at the moment. Holding 3 ETH will be the right choice. Its price is quite low now so it has potential to give us 3 times profit even can be more.