Google spent a few billion dollars to buy an office building: http://www.nytimes.com/2010/12/03/nyregion/03building.html?_... (they later expanded it for even more).

eBay's 6th Ave office costs $2-3 million per month (what's a million dollars between friends?).

(This isn't really relevant though. I just like reminding people huge sums of money are in play. Your little "$50k to $200k angel round" isn't as big a deal as you think.)