i'm 37 a video game collector. My interest in misprints started when i first ran into my first data error it was a marvel vs capcom 2 on a midway arcade greatest hits volume one after searching around I could not find any mention of it. so i started making lists on various forums which eventually evolved into this site.
cool to see a page like this, i've submitted a couple of Mega Drive ones before and the fact that they have misprints is very interesting!! Like you, i saw a misprint (upside down label) and thought it would make a nice addition to my collection... then started noticing more and more.