I guess my fist contact with metal/hard rock was my obsession with Kiss in the mid 70's. I got a 45 or two buy them back then but didn't start getting into my album buying frenzy until 81 when I got the Heavy Metal movie soundtrack. I then went ape shit and got a ton at once,, some of which was Ozzy-Blizzard and Diary, Judas Priest Screaming For Vengeance, AC/DC- Those About To Rock and Flick Of The Switch, A bunch from Black Sabbath (would be a sin not to) plus some Blue Oyster Cult and other misc stuff. When Metallica's Ride The Lightning and Slayer's Hell Awaits came out everything changed and I just got buried in the underground and I've been there ever since always getting into heavier and darker shit as possible. It just kept going on in progressions. Venom, Possessed, Death, Bathory, Cannibal Corpse, Deicide, Morbid Angel, Emperor, Opeth, plus of coarse shitloads of more obscure stuff (exorcist, Tvangest, Acheron, ect...) and on and on.
Plus I've been playing (bass) and doing vocals with it for 20 years so I think I'm in it for life.