1. Intellectual curiosity / boredom - people bore me, I believe that people are quantifiable, no one believes me, so I think it would be fun to demonstrate a person in a machine (since 2007 or so).Those are the first things that come to mind, but aside from that I probably did find computational finance to be interesting when I was reading about it in 2006/7. Also, when I was working with a social enterprise in 2007/8 I did think it would expedite many projects we were talking about if we could just build the software on our own, immediately.
2. Commercial value - I want to know how to manage software engineers (since 2009 or so).
Why I Program Computers (2015)
I expect this to change from time to time: