Art + branding = clever

I wonder what the sales were as a result of this famous print....did people unconsciously decide to by Campbell's Condensed Tomato Soup rather than the other brand?

Regardless of whether art can increase ROI,what I find to be cool is that people look, engage and talk about. It becomes a bit of fun, and interesting conversation. 

When a piece of marketing activity can make the world a little bit more interesting or fun, I think they have done well. ROI should also take into account the unmeasurable. Quality and quantity can be linked you just have to know how to do it!