I have thought about how to get rid of all of my magazines a number of times, still haven't arrived at a conclusion as to what to do. I have MCG going back to probably 01 or so, a plethora of others, some MM, some MA, etc.
I had the same issue I had mm and American rifleman and some others dating back to 01 or 02 I finally threw them all in the recycling I kept a few issues like 2 or 3 but the rest got tossed.