I think the "used every day" point was more along the lines of a cargo / passenger jet can haul stuff all day every day, whereas (hopefully) you don't have a need to bomb the living shit out of someone all day every day.

Then again, perhaps maintenance of a stealth bomber really is horrendous enough that it wouldn't be able to fly sorties "every day".

But basically I read GP cooment as an apples to oranges comparison (since you traditionally wouldn't drop bombs using a cargo aircraft, and wouldn't airlift cargo with a bomber.)