I love magazines, someone said there's a whole host of info on the web and whilst that's very true I find nothing is better than a physical printed copy. You can get a 'feel' of the magazine, especially if special papers have been used for certain pages – texture is an important part of design, something the net would struggle to offer!
I've got stacks of issues of a range of mags, good to keep to refer back to as well.
I subscribe to Creative Review, Print Week and Mac User, plus also sometimes buy Computer Arts and Design Week.