The interesting thing is that there are only 100 million tokens emitted! Will that price of $2 in the last lot be possible to keep after ICO? Is it interesting to have $0.1 in the lot 1 and the price to rise %2000 in the last lot? These initial investors will be able to sell their tokens at any price for example, could this not hurt the last participants? Good luck to you and staff.
Supply and demand will easily float the price, this is only the presale, people will be buying at the market price when the portal is complete and live.
As we all know and have seen in previous ICOs/ITOs 2000% increase in price is by no means difficult, consider we have seen the likes of Neo with in the hundreds of thousands % increase.