Question about Osama videotapes being shown in US for last 10 years?

The whole video tape story has holes in it. As we know the video tapes of OBL are the only proof shown to public that Osama is tied to 9/11. My question is notice how easily and how conveniently the US government was able to get Osama home made video tapes regularly while being so tough to track him down for 10 whole years. So they can get his home made physical video tape so easily but don't know where he is for 10 whole years? I sense some staged propaganda here. How did US get Osama home made video tapes one after the other? He obviously could not send it by mail -- too easy to get captured or caught. They say his agents handed the tapes to Aljazeera every 2 months or so. If that's the case, why weren't US military circling and surrounding Aljazeera station, knowing an AQ man will come to hand deliver the tape? Do note none of Bin Laden videos were uploaded to internet by himself. They were video tapes that were first handed to Al-jazeera or were directly handed to CIA? The biggest shocking part is now they say that it was an Osama courier or delivery person who led to being OBL located. So for 10 years the courier kept delivering tape after tape to al-jazeera and he was never used to locate OBL? This story again has holes and it doesn't add up