EOS is indeed very promising technology, especially when the project is developed by Larimer, who has a ton of experience.
I wouldn't say that $100 million is really needed for EOS to be successful, tbh.
Expect a really big pump as soon as the EOS main net is launched. However, in the long term, there will always be projects that are supreior technologically compared to EOS. But the hype generated from the launch of main network should be more than enough to propel market cap of EOS to 3rd or even 2nd place, and over take Ethereum, IMHO.