[KrisAndrew]

It's more of a response to the market. Beginning about 5 years ago I was increasingly asked to do more numerically oriented things. Prior to that I was mostly writing applications that generated SQL and wrapped the results in some HTML. Pretty boring. Data science is more compelling.

Over the past 15-20 years there has been a massive amount of information piling up in databases and log files; not just from web applications but from desktop and mobile apps too. And there are companies who want to pan for gold in that data. So if you want to do something more interesting than fiddle with canvases, or CSS or MVC frameworks, then data science is fairly accessible if you're not afraid of math. Furthermore, most companies will have a need for it even if you don't really care to develop their software products directly.

NB: I doubled my salary by moving into data science. Nowadays gas station attendants can write a Rails app to search a database. The bar has been lowered. Understanding stochastic gradient descent (among other things) and knowing where/when to use it commands more earning power.

[dasboth]

"I was mostly writing applications that generated SQL and wrapped the results in some HTML. Pretty boring." - This is basically why I'm interested in making the move (eventually). Earning power may turn out to be a perk but the main motivation is something that is perpetually stimulating.