What I'm trying to communicate is that Wikimedia has challenges, possibly exacerbated by Google's behaviour, but the challenges are not money. Wikimedia is not a for-profit corporation, it's a non-profit with a mission to collect and distribute knowledge. Google distributes pieces of that knowledge, but does not contribute to the collection of new knowledge.¹ Wikimedia has all the money it needs, and is getting more money from more people all the time. It does not have all the contributions it needs in the form of new knowledge, and by many measures the new knowledge it gets is decreasing.

tl;dr

The monetary cost does not really matter

1. It does contribute money, which Wikimedia does not need.