This is why I always bother to talk to the gamers at my local Gamestop. Three flavors: Two gaming geeks, one arcade goer from the same days I grew up in, where the SF2 cabinet had a line and an audience, and all twelve quarter-slots were always full, who loves to chat about "the good ol' days" (Yeah, I'm 23, and?), one guy probably twice my age who played AD&D in the Navy and is still into gaming as about anyone I know, two more recent, casual-ish gamers, who have taken a few of my suggestions and are genuinely interested in learning about gaming (I tend to talk about gaming history and where-it-came-from... neither of them knew about System Shock despite both liking Bioshock, for example), and two "Hardy har, my 360 is a 200USD COD MACHINE!1" types... and a manager who has one of the limited edition SEGA Dreamcast competition sponsor jackets.
I've gotten to know them pretty well, after one commented that "At least someone has some decent taste in games" when I picked up a copy of King's Field and Persona 3...