Lord Mhoram
Hero
I voted did not - but I would run different characters in the same world (sometimes concurrently) and quite often characters would switch groups. More often than not, I would just keep running the same characters for a decade (as a player or GM). I ran some 1st ed characters for my wife that started in '86 and were last played in '05. She's done the same thing for me. 
In other systems I've played in, or ran 8 to 10 years games, with the same characters.

In other systems I've played in, or ran 8 to 10 years games, with the same characters.