I'll have to say TAF. Never got the hype or enjoyed the game play on location when I first got into the hobby. Thought it was boring and easy and didn't care much for the theme. Fast forward 15 years or so and I still didn't get it.

But then I saw the play (still haven't seen the movie) and ran into a well-maintained one on location and could actually hear the game. I warmed up to it, so much so that I decided to buy a very nicely restored one figuring that I could easily resell it in 3-6 months if I really didn't like it. Now, I learn and appreciate the game more each time I play it. Don't think it's going anywhere for a while.

In order to make room for the game, I sold my Monopoly which I had bought NIB and thought I would never sell. That turned out to be an opposite case - I loved it when it first came out, but just didn't enjoy it as much when I set it back up again. As much as I love the Monopoly theme, I have to admit that the TAF is the better game despite being ten years older.