Do you read newspapers? If so, which ones do you tend to read?
I only buy them if I'm going to be out and about and will have some time to waste. If I'm going on the train, for instance, I'll probably buy one for something to do on the journey. I don't tend to buy them on my run of the mill days out because the ones I read are fairly expensive and also because I'll usually have a book/be playing Tetris on my phone instead.
When I buy the paper I tend to buy either The Independent or The Guardian. Though I've occasionally bought others if there's something good free in them (I rarely bother to read the paper though).