we can complain all day about it. and i do too. when i see some set list i'm always, "y u no sing my favorite sonnggggggg?!?"
but it's soooo different when you're actually there at the concert. you just get this rush when a song you know comes on and you all of a sudden love the song. going to paul mccartney concerts, he always sings "hey jude" and i'm pretty damn sure he's tired of singing it... especially after ~40 years! but it's a fan favorite and people get into it
but with as many songs as she's come out with, it's hard to fit them all in.