What is the point of this thread? Gathering a bunch of hive members to try and "drag" Britney? why do you care so much about her and what she's doing? She's doing vegas because she likes staying in one place and has desired a vegas residency since 2005, that's correct.. 2005, it's not a result of her "fading", it's a result of her wanting to do it for a long time.
Also it's pathetic that you would try to come for Britney when Beyoncé AND Jay Z sold out the stadium, Bey did not do it alone. So pair Britney with Eminem and then ask the question in the OP & yes with the same amount of promo for the tour Brit/Eminem could easily sell that stadium out, Britney also sold very well in France throughout her whole career so if she hyped a ww tour she could bring in a lot of sales, sure.. at this state in her career, I do not believe she could sell it out alone and Beyoncé couldn't sell it out alone either so this is very pointless.