No offense to the sideliners, but from a bosses' perspective, I want my reporters in the press box regardless of their preference.
If for nothing else than to make copy flow easier in the office, because the gamer can and should be worked on during the game. It's not like basketball, where stat-keeping is so labor-intensive that you can't write between plays, a football gamer should be at least 1/2 done by the end of the game with a box in progress.
And having done a million gamers, most from the press box, but plenty from the sideline too, I think the whole notion of seeing and hearing more from the sideline is really overrated. Especially keeping in mind that you hear nearly as much "inside" stuff from assistant coaches screaming up in the press box anyway.
And I prefer the statistical aspect of the press box. Good luck getting an accurate read on a kick, punt or interception return for a touchdown from the field.