We read a lot and this is the place for magazines, especially those speciality kinds, like Lapidary or PC Magazine. This store has hundreds of titles to choose from. They stock them month, and they also carry back issues so you can pick up last months if you find there is something you missed. Prices are discounted for the most part, with only the really specialized ones being full price.
And comics - they got them all.
The store is well laid out, everything is visible and you can thumb through the racks looking at back issues or the newest releases.
This is the place for magazines, and if they don't have your comic here, then it probably is out of print. By the way, they also have some classic comics for sale, just look up on the walls.