Star Wars action figures.
I didn't even get into Star Wars when it first came out. My taste in Sci-Fi was very selective. If some unusually large creature didn't cause large amounts of property damage, I had no interest.
But C-3PO did catch my interest. A golden robot that spoke with an English accent? What a concept! I saw his figure in the store and my folks got him for me. I remember the time I had unsticking his arms and legs so they could move. I was scared I'd break them off!
The line finally did run its' course. I collected all of them except for three: the original Snaggletooth (the tall one in the blue suit), Luke as a Stormtrooper (from the first movie, coming out in the last wave of figures), and Yak Face (Who was never released in the U.S.). I put them away, only taking them out for the occasional library display. But I knew they'd be worth a lot.
Finally, a collectibles store in Chicago bought half of them for less than their worth (that's the first thing I was told: you will almost never get what the price guides say they're worth). The rest I sold to a lady at an antique mall. It felt very strange having to sell them, like I was losing a large chunk of my life. I do wonder sometimes where they ended up and if they've been as well cared for as when I had them.
I've only collected two other action figure lines as closely: Batman the Animated Series and Doctor Who. But I'll always remember where it started: not so long ago, in a galaxy not so far away.”