None.

Wait until the ICOs are finished and grab the coins/tokens for a 75% discount.

This is the pattern I have been witnessing and I will not make the mistake of buying during an ICO again until I see a change. Even with a discount of 30% on tokens during an ICO AND a bonus of 50% more tokens for buying during that ICO - you still end up paying more than you would if you just waited until the tokens/coins hit an exchange and all the whales/bounty hunter dump.