for the love yourself tour in 2018 bts did a medley of different songs for different days of the show, so since day 1 and day 2 had slightly different setlists i got why people went to all of those shows. for speak yourself in 2019 they had one setlist for all and have kept with that since.
but i get wanting to go to all the shows they have in your area cause even if the songs are the same its fun watching them on stage regardless. for the bts reunion i plan to go to one show with floor seats and another in the lower bowl because its a different and fun experience being closer and further