Whether in a bomber, a group of bombers, some escort, and an intercepting enemy, this is always a fun scenario.
Waste of manpower?  No way.  Knocking down strats helps in keeping things down for longer periods of time when porking a base or deacking a town, etc...  Yes, the strats self generate or come up faster with Goon field supps.
I enjoy these missions on either side (bombing or intercepting).  
Sometimes, getting to altitude whether intercepting or bombing and escorting, is a chess match.  Then, when close, setting up for a pass is a game of wits and strategery...
Always fun to see large groups with escorts and also large groups of interceptors.   
