That's really cool - I have some old gaming magazines (EGM, PSM mainly & some early 2000's era Nintendo Power) and it's fun to flip through & look at those old ads. I sold my collection of Video Game & Computer Entertainment magazines recently, those had some REALLY old 80's ads that were very funny.
I recently found that my mom had a very early 80's issue of Dynamite packed up in my stuff - it still has an unused iron-on t-shirt transfer that has some retro space invaders-esque graphics & says "In case of alien invasion, give me quarters." I'm thinking about seeing if it will still transfer to a shirt or if it's just too old.
I love old gaming magazines. It's like a time machine where you can see exactly what was going on in that moment of gaming, and the mentality everyone had.
I have a box full of old gaming magazines, the majority of them being Nintendo Power and Game Informer. But I do have some EGM, GamePro, Offical PSM, and others too. I always pick them up for cheap when I see them, but I'd never pay the prices people are trying to sell them for on eBay most of the time.