What's the life expectancy of a Fuze?

Assuming no defects the lifespan is limited by the battery so you’re looking at between 3 and 5 years until battery performance is so bad you can’t use it for more than a few minutes. I doubt even the most enthusiastic playlist junkie music fashion victim will manage to make so many writes that the storage quits but it’s possible. Quite likely is that one of the wheel buttons or headphone jack will fail before you get to the end of the battery’s life. I have no idea how long this type of screen is supposed to last but similar ones I own have lasted fine, 5 or 6 years and counting, and have seen out the original batteries (iRiver H140 % H340).