Well, like at the super-market, I prefer to see a human when I buy something. I also feel like I am also helping someone keep their job - I know, kinda pompus to say, but a machine is no match for a human.
Alas, each time I went to print out pre-booked tickets (which I buy often), I just felt like I was an annoyance to the man/lady on the other side, so I use the machines now.
First time post, years I have lurked - liking reading the opinion/experience of the staff I see when I commute, just my two pennies worth on this subject.
cheers c: