Why did Bruce rejoin Maiden?

I'm not sure sure about Bruce not being the star vocalist he is today without Maiden. I have a feeling he would have succeeded with or without them.
Southy said:
Not with Samson.....

Heheh, exactly my point. I've heard all of Samson's material with Bruce and even his voice can't save half of it!

I agree Bruce would have been successful anyway to some extent, but it was the music Maiden were already producing that really gave his vocals the opportunity to shine, not to mention the fact that Maiden were already becoming a well established touring band before he joined and this put him in front of a lot of people. Without Maiden he may never have gone that far.
True. There are shitloads of musicians and singers with a lot of talent who really haven't made it that far, fame and success wise.