Well, truth be told, at one point in 1976 or 1977, after my Mom yelling at me to keep my room clean and TO PUT MY COMICS AWAY many, many, many times, I came home from school and she had clumped them in a box and sold them to the guy for a penny each.
And we're talking about some cool pre-Batman comics in the 200's... some Neil Adams stuff, Amazing Spider-Man's, Marvel team-Ups, Kamandi, Swamp Things, Man-Things, WereWolf By Night, Justice League of America, Detective Comics, Daredevil...
While most of it was rather easy to obtain in the 80's (though a bit more costly), some things were more difficult to find... like a full set of Kamandi's.
I could get all 59 Kamandi issues now... if I want to pay over 300 bucks.
In any event, I started "seriously collecting" in 1978, so I guess I learned my lessons.