So did you have friends with walkie-talkies? I did, but back in the 70's the only good ones were very expensive. Ours had very limited range... not nearly as good as those kids had in Stranger Things.
Yep. Walky-talkies, had those once upon a time. And I remember going to the arcade. Long before I had my PlayStation, 2 3 and 4 (I've had them all) or SNES for those of us who remember SNES, long before any of that I remember going to the arcade, putting one or 5 or whatever dollar bills in to get quarters and/or tokens, I remember Pac-Man, Miss Pac-Man, Galaga, Space Invaders, Dig-Dug, Joust, I remember trying to play Dragon's Lair and flipping my lid just like Dustin did, couldn't believe I spent 50 cents on one game... and, of course, the arcade in the show looks exactly like arcades such as I remember them...
And, if we can go back to Season 1 for a moment, OMG, old school Dungeons & Dragons, oh, that was my life! I still have all the original books: Dungeon Master's Guide, Players Handbook, Monster Manual, Monster Manual II, Fiend Folio, Unearthed Arcana, Dungeoneer's Survival, Wilderness Survival, you name it.