Sometimes standoff is good and necessary. Stay out of threat range, not be seen or heard by the enemy as you follow them with your targeting pod, etc. Sometime

Sometimes standoff is good and necessary. Stay out of threat range, not be seen or heard by the enemy as you follow them with your targeting pod, etc. Sometimes standoff is pointless. Friendlies on the ground are in a knife feet with the enemy less than 100m away and they need air support. Now close, and slower to better maintain SA on who the friendlies are and who the enemy is -- and the ability to deliver weapons with lower Risk Estimate Distances and/or Collateral Damage Estimates is critically important. The GAU-8 does both. The F-16 gun is useless. A laser guide bomb in this scenario may present too much risk for fratricide. A-10s can carry more ordnance, for a longer time over a target area, and need less tanker support to do so, than an F-16. And for less $/flying hour. It does cost speed. A-10s don't go anywhere quickly. But it can perform CAS in a standoff roll, or in a close-in fight equally well.