i can't see myself doing multiple playthroughs back-to-back unless there's multiple branches of story that offer enough distinction in content to make doing so not a chore, but even that's a reach. it could be fun to revisit an enjoyable game and playthrough it again years later, though. i do think it's cool that some people have the will to set out to discover and soak in everything a game could offer.
there's also achievement/trophy completionists. i guess 100% completion in that respect can be impressive at times, too, since it's a hassle for me to attain just the easiest ones
|