The EDA tools are often given for almost free to startups, as the vendors recognise startups can't start without them, and if they are too expensive to a fledgling company they are shooting themselves in the foot. Startups get the tools, but not the support. I'm in HW chip design and use EDA tools daily, and while they are not always great, I would not be as concerned about them for a startup as I would getting enough money to create the first prototype, fab costs, lab equipment costs, man years of engineering, and of course the IP.