I always considered it from the angle the game took that without us having any real choices not that it was a shitty game for us, but that we play through Joel's game. Looking at what happened to him and his daughter and now his choice with Ellie, I feel that while it's kind of selfish, it makes sense. Who knows if the surgery would have even worked?
I got GTA V with my PS4 and just started replaying again. I'm surprised at the amount of little touches they added from the PS3 version. I just transferred my GTA Online character over to the PS4 and the graphical upgrade is surprising. I'm also glad I got a chance to redo my characters appearance. For whatever reason my PS3 character looked like someone had used her as a punching bag. My point being that I hadn't expected to want to replay the game again but I'm having a blast.
I played it on my old shitty 360 the first time, so having it on my ps4 is fantastic. The small details are amazing, and you're right, playing a game I already played for hours again seems odd but it is amazing.