I don't know if playing the whole Nostradamus is the right thing to do either, but it's up to them. I think it's Judas Priest who see how many people show up at their shows every time they play, so they would know better than me or any other member of this minority that roams the boards if playing Nostradamus is the right thing to do. 
Perhaps a one time play in the UK would be sufficient? The home crowd is always harder to please but can you imagine how much a recording of such a rare event would go for on Ebay?Think about it. 
Also, if Maiden's AMOLAD is their best album, playing it is not a mistake. I feel you are forcing yourself to like AMOLAD. Perhaps analyzing Iron Maiden is best left for the Iron Maiden website. I've been listening to Priest and Maiden for over 2 decades and apart from being 2 english bands, I fail to see why one has to be compared against the other continuously.
As for Priest, Nostradamus is a tough subject to write songs about without sounding tacky and Priest pulled it off quite nicely. Who's to say what you should like and what you shouldn't like, metalmaz? And the same goes: who's to say the audience would actually like it played live and NOT walk out or go to sleep.

		metalmaz wrote:
		So how would you feel about Priest playing the  whole of Nostradamus lve? I think it would be a massive mistake. I love Priest, but I really don't like Nostradamus and it's not for want of trying.  Let's face it the Priest forum only makes up a very small precentage of the audience at gigs. And quite honestly many  non forum  members would walk out or  go to sleep Iron Maiden played the whole of A Matter Of Life And Death when they toured to promote that album.  In my opinion it was a big mistake (and I think A Matter Of Life And Death is one of Maiden's best ever albums). And the ironic thing is Halford got the arse with Iron Maiden  and said Priest had planned to do a concept album and play the whole of it on tour.