Not really. It's a scale issue. Such an expenditure to Google is like a billionaire dropping ten thousand dollars on something, compared to a normal human asked to come up with ten thousand dollars.

Buying a default spot is the interesting aspect here. Google spending more than Bing's entire yearly revenue just means they want that thing, and tells you their relative wealth. I figure this applies just as well to corporations as it does to individuals: if you're going to look askance at Jeff Bezos etc. you may as well keep an eye on businesses with similar disparities of scale relative to their market sector. Not like we haven't seen all this before.