Do you plan to conduct IEO in future of you conduct only token sale? How many rounds of token sale will you have?
The matter is that different exchanges have different liquidity and number of traders and when IEO is coinducted the investors know befohand where and on what exchanges will be listing in future.
Participating in token sale on the site investors know nothing about when will be listing and on what exchange. I know many projects that conducted token sale in 2017 and still now do not have listing on exchanges.