I agree with others here that focusing your eyes on _using_ open source is, at least, an incomplete view of the problem.
What we (European software engineers) have been arguing, is that software that is funded by public means, such as from universities or institutions, ought to be made fully public, including ability to tweak. Thinking that open source software will help solve your budget and/or political problem is not something we're interested in doing for free. This excerpt here:
> In the last few years, it has been widely acknowledged that open source – which is a public good to be freely used, modified, and redistributed – has
suggests they see it as free candy, rather than the result of love and hard work, provided for free because it's nice. Pay for what you use, especially at the government level.
Of course, I strongly encourage the European governments to invest in open source. And if you're interested in giving money, I'm interested in doing work. Same as ever.