These are my Monopoly stats:
Times I played: 55 (110, if you count Star Wars Monopoly).
Times I actually finished the game: 24, or 25 (45-46 counting SW Monopoly).
Times I actually won: 8 (17, with SW Monopoly).
Main reason why I lost so much, was because when I wanted to buy properties, I had to mortgage properties I had owned. And that angered me, when my brother, or my friend land on one of my properties, and I check to see how much they owe me, only to find out I mortgaged it.