The beta platform will attract many new investors. I am sure many of the people that were hesitant to participate in the ICO will invest in IronX and that's why the extension of the ICO was a good decision.
In reality, having a beta version is also part of the "Rationale" behind making the "Economic Decision" to invest on IronX project, As an economist there must be certain factors that could attract a person to make some decisions, Now in this Context, it could be the beta version, team track record, the services IronX will provide, the partnership etc which could make this project successful and profitable,
If there is no Reason to Invest - e.g - profitability, there wont be any interest to invest, nobody wants to loss money.