When I was a kid, I played a lot of Pokemon, Star Trek CCG, and Star Wars CCG. I still have all my cards (The Star Trek collection's around 20,000 cards even thanks to a resurgence of interest in college coupled with being able to buy boxes of boosters dirt cheap). Never got into Magic, namely because I had an absolutely horrible teacher (basically, he helped me make a beginner's starter deck, then played a complete competitive hate deck against it, and was surprised when I didn't want to play more). I never got into YuGiOh as I really didn't like the overall quality of the cards and how specific-use a bunch of them were.
In High School/College, I was big into the Star Wars Miniatures game, to the point where I have a near complete collection of the entire line (missing about 10 figures overall). I've still kept myself somewhat involved in the game's diminishing community as being one of the main Rules guys out there.
Nowadays, while my game group wants to get some tabletop RPGs going, the lack of reliable scheduling prevents that (Trying to get a Retail manager, a factory worker, a casino cashier, and 2 police officers to have the same days off is a challenge in and of itself, let alone doing it consistently). So instead, we get into standard board games. And as the host, my collection's exploded. I've got around 200 board games at this point, with little sign of slowing down.
Right now, the main games of interest in the group are Space Base, Paladins of the Western Kingdom, Scythe, Tiny Towns, Red Dragon Inn, Joking Hazard, Risk: Legacy, Dice Forge, and Azul. We do also like going back at times to the trusty standbys of Catan, Dominion, Ticket to Ride, and Smash Up. But I do buy enough that there's always at least 1 new game to try out by the time of the next game night. Next time, I'm gonna have a bunch of grown men playing Monopoly: Unicorns vs. Llamas; It'll be magical.