> In my experience, it's much more of a problem convincing people not to pay for things.
Or paying too little. Ask me how every time we apply for public funding we need to gold plate the shit out of the project so we can ask two orders of magnitude more money than is actually needed, because if we don't either we don't even qualify for funding or nobody takes you seriously.
Friend of mine literally added an aeroplane to the project budget so he could get funded, which he did.