Their game was Advanced Dungeons & Dragons 2nd Edition, and I did love it. That edition of the game provided many an hour of fun for me and my friends, but by the time I got into it, it was bloated and for a kid with barely any money (I had to pay for car insurance, fuel, etc.!), it was almost impossible to catch up.
The same was true for Vampire: The Masquerade. Though my highschool group jumped into that, I felt insecure in my abilities as Storyteller enough, and had the aforementioned lack of funds, that I was hesitant to get more than a few books in that system, partially to avoid overwhelming myself and the primarily-casual roleplayers at the table.
Then, in 1999, Wizards started posting articles about the upcoming new 3rd Edition of Dungions & Dragons in Dragon Magazine, and I devoured every bit. I bought the books as they released, and I've honestly never looked back. I purchased the 3.5 updated tomes, and now am just a few books shy of having everything Wizards put out during the official run of the 3.x Editions.
It doesn't really stop there, though....
After a brief dalliance with 4th Edition, and a growing distaste for it, my group and I jumped to the Pathfinder Roleplaying Game, the spiritual successor to the 3.x line - so much so that early print ads for the game had "3.75" on them, and it really is the best fit, and a true continuance of the game I love most.
This is all not to say I don't enjoy and play other games. In fact, I have been known to ask my group to play other games just for variance, but I'm never truly upset at a 3.5 game featured at our game table.