Kind of makes you feel guilty when the check out person sees the cover, eh?
I only subscribe to one magazine - and it's not model or car related. I do buy every issue of MCM from a local shop. SA I peruse and buy based on content - hit and miss. Fine Scale same thing. Mopar Action (I think that's what it's called) on occasion.
One of my favorites is Nostalgic Heroes, but it's not easy to find here in the States, is expensive, and is written in Japanese - so it's for the pictures only (and, no, there are not tattoo laden fancy girls adorning every page). They have some really great articles on classic Japanese cars.