Invest... in what exactly? Promises that will be ready when they are ready? I've put enough money into NLG in the past, but am still unable to pay with it at the local supermarket after how many years now?
Why not ask Rijk? He has over 650BTC to invest. But guess what? He won't! Why? He spends that on salaries for himself, his brother and friends. Not that they do actual work, they hire an African mercenary for that. That's why updates take years in stead of months. It's just one guy doing the actual work, while Rijk and his squad are partying with fat paychecks paid from the dev fund.