When I was a young dipshit playing 3rd edition I thought backpack banners were kind of silly, why would a solder have a big ass flag waving around on top of him? Especially when you have dedicated dues whose job is already to have a big flag to wave around (Standard bearers). So I never put them on and clipped them off if they were built in. I had quite a lot of them in my bits box. Only much later after liquidating my entire collection do I see the folly of my ways and recognize the superiority of backpack banners. If I collected Space Marines again I'd be feeling a little sore over not having those spare banner poles.