I occasionally get a photography mag when I'm travelling (on expenses!
).
Tbh, most cover the same things all the time. Pretty much all of which you can find online anyway.
The best buy for me is one of those magazine book things, which covers A LOT of things, and does contain a lot of useful info. I think one was called 'The essential guide to landscape photography'. It was 7.99, so more expensive than a mag, but much larger.