Thread to share stories, explainations for this phenomenon.
My story:
I wasn't a fan of TF's as a kid because we lived way out in the "country" where only a few fuzzy TV channels came in. Also being a girl, TF toys weren't first on anyone's mind to give me either. I vaguely remember the 1986 movie and a few times seeing my cousins in the "city" watch it, that's it.
At least I can thank the 2007 movie for spurring my interest. I was so interested when I saw the initial teaser trailer that I insisted my husband and I watch every episode of G1 we could find on youtube. This started out with the intention of "preparing" for the new movie.

From then I was hooked, and I've been eating up every series, comic and toy for TF I can get my hands on. It's crossed over to GI Joe too, though I didn't watch that as a kid either my cousin had a ton of the toys and I'd sometimes sneak with him to read my older cousin's marvel stack.
Maybe I'm not the only one here with a similar story?