Why not all of the above? They didn't say price was the only factor, just said it was a reason. I know I moved out of London last year because I no longer need

Why not all of the above? They didn't say price was the only factor, just said it was a reason. I know I moved out of London last year because I no longer needed to be in London and rent was hard to justify. Sounds like they were in the same boat. You can rebuild your app from anywhere, might as well do it from somewhere cheaper (yet still vibrant).