TAPES - In the late 80's I bought my first cassette. The first tape I ever owned was the Beastie Boys album Licensed To Ill... Now, 30 years later, the tape collection stretches over a thousand items.
VINYL - "Channel Live - Mad Izm" was in the 90's the first record I bought on vinyl, started a bit later with these simply because I didn't have a turntable at home.
CD - Have always been a big fn of cd's as back in the days they were easier to find in my city. "The Predator" by Ice cube was the first hip hop album I ever bought on cd.