i started rather late with computer games ( i played a lot with my Sega Game Gear before), but my first pc game was an adventure game, namely the fabulous Curse of Monkey Island! I remember that i got it from my parents, because of a good mark in a math test.
i didn't have internet at that time, so no cheap walkthrough-reading-puzzles-soluting. i rather asked a friend of mine at school, who recommended me CMI in the first place, for advice and somedays we played CMI together.
After CMI, i bought all the Classic LucasArts Adventures and many more...