Right, also back to that original point: I could totally believe that a 2009 Google would run that project for other reasons than advertising, such as prestige

Right, also back to that original point: I could totally believe that a 2009 Google would run that project for other reasons than advertising, such as prestige or engineer-driven because they thought it was cool. I mean there are posts here from people who were part of the original project. Today a project like that would be beancounter-driven and only allowed if it had a clear short-term ROI. Did Street View have a positive ROI over time? I don't know. It certainly helped put Google Maps front and center. Maybe you can think of it as a very successful advertising campaign - instead of blowing millions on SuperBowl ads you blow millions on cars taking pictures of every public road mile.