Another way augmented reality could be used in her shows

Here is another way augmented reality could be used in Lady Gaga's shows:
http://www.technologyreview.com/blog/editors/25114/?a=f

Perhaps the stage could change appearances during the show.  Personally, I think the real money is going to be putting on shows and merchandising rather then selling music royalties.

Another thing is people will find the money to pay to get away from their troubles for a little while.  So even if the economy isn't doing well if people want an escape from their troubles they will still pay.  If the economy is doing better then they will be able to find the money.