You guys are so overdramatic. Her last tour gross is enough to tell you that she's going to be around for a long, long time.
Plus a lot of the blame on her underperforming singles was on her. I swear, every single from that era suffered from mismanagement one way or another (at least in my opinion)...
Born This Way = ended prematurely so she could release Judas and get those digital sales. It still smashed though, so whatever.
Judas = should not have been released at all in the US, was abandoned the very second it started to flop.
The Edge of Glory = Flop video ended up having a minimal effect on digital sales, probably hurt its longevity (though it still did great).
You & I = should not have been released outside the US, ended up killing the momentum for Marry the Night in many countries.
Marry the Night = Ridiculously long video.
Just my opinions anyways