What I don't understand well is the price value of BNT when post ICO.

Right now, 1 BNT looks like it will be around $2.50 USD possibly closet to 3.00USD if ETH keep going up.

The part I don't understand is that if market cap reaches 500 million at ICO, hypothetically, then this will devalue my BNT? So 1 BNT could be worth a lot less than 2.50 USD after ICO due to more investors pumping more money? Someone explain this to me.