One other thing.
Whenever I remember something from my childhood, I can't help but ask myself: "source please!"
Memory is a funny thing. When some aging grognard talks about how they played in back in the day, you have to account for selective memory and memory affected by discussions and reading since then.
For example, I was certain that I started with "Red Box" D&D. That box art is so iconic and so much of D&D culture discussion and songs reference Red Box D&D. But then I read that Red Box didn't come with a module. And if there is one thing I am sure about is that my first box set came with Keep on the Borderlands. Because I kept playing it over and over when I first got the game, because that is what I thought the game was.
But then...the only gaming artifact I still have from those days is a single dog-chewn d10. It is pale blue with the white-crayon filled numbers. But when I look on-line, I see blue dice with the Mentzer box and Yellow dice with the Moldvay box. I'm certain that Keep on the Borderlands was in my boxed set and I highly doubt my parents would have thought to buy the module separately. But who knows. I can't trust my memory and my parents don't remember. Maybe different printings had different colored dice.
I talk to friends of my mine that I played with back in the 80s and they'll remember games and adventures that I have no recollection of.
So, while I cherish my memories of gaming in the 80s, I certainly don't trust them entirely.
I generally have a very good memory, but even then, memories can be deceptive. I can remember very clearly walking through Montgomery Ward to go pick up the Red Box at another shop in the mall (whether it was KB Toys or Waldenbooks, that part I don't remember). But I certainly don't remember that it was on such-and-such a day in 1986. The only way I can come up with the exact date I started gaming is by cross-referencing when my family moved to that town with certain Dragon magazines, when I got the Dungeon and Wilderness Survival Guides (which meant we had switched to AD&D by then), the fixed point of when 2e came out, and working back from that.