In response to Hfxsoxnut's comment:
Over the last 9 years Jeter has played against the Sox approx. 162 games, a full season. Surely someone can remember a game when Jeter's fielding issues resulted in a run or more for the Sox that contributed to us winning a game.
The problem with trying to recall a "lack of range" play in which Jeter caused his team some runs defensively is that these plays are ruled as "hits" by the scorer. Therefore, most people watching the game credit the batter with getting a good hit rather than blame Jeter for allowing runs to score. Most people don't even realize that that grounder would have been turned into an out by the majority of the other shortstops.
It is easy to remember when someone boots a grounder, especially when that booted ball results in runs. Most people are not going to make a mental note of a grounder that made it into the outfield, "past a diving Jeter", that resulted in runs.
In one study of data from 2003 to 2008, the SS with the highest rate of grounders kept in the infield was Adam Everett at 83.5%. Ramon Vazquez was worst at 76.5%. Jeter was 2nd to last at 77.3%.
The difference between the best and worst over a season is about 40 hits. So, Jeter has fewer errors than other shortstops, but he is giving up significantly more hits. Just because these plays cannot be easily seen or recalled doesn't mean that they don't exist.
Moon is spot on in his posts about Jeter's defense. The fact that he makes all the plays that he gets to is biased by the fact that he gets to so few. Even with his sure handedness, he is an overall terrible defensive SS.