The first wargame I played was Tactics II. It was my father's copy which he bought in 1962 to play while he was stationed at remote bases in the Northwest Territories. Much later I spotted it sitting high on a shelf and for some time it intrigued me to no end. My father finally brought it down and I got to play it when I was about 8.
Playing the game with my brother I remember we thought it more fun to drop paratroopers from about a foot off the map to account for drift :-)
I still have that original copy and like to give it a play every so often.
I have to admit that I am also a game hoarder. Purchase only one title in a series, is that even possible? At the least I keep them all nicely organized