I did this for 2 months, mainly forced to, I had my phone stolen, it was kinda nice, I read more newspapers and learnt i could send SMS messages from payphones!
I live in the UK, most of the newer (like after 2000) BT payphones can do.
It was kinda funny, I'd started dating at the time and I got some funny feedback from ladies I was dating.
Although I did find someone who thought I wasn't a massive weirdo!