I played Platinum so much my cartridge eventually fell apart. Yeah.
Suffice to say, that's my most favorite game, but even so, I hardly play it nowadays. Since BW, I turned into a very slow player, leveling up every new pokémon I get and ignoring older gen's pokémon. As such, I still haven't completed Sun and Moon. That doesn't mean that I don't play other Pokémon Games. I replay Red and Crystal every so often, because I can get around quite fast in those. And even still, in those games which are pretty much classics, I often get to a point where my interest just drops (In Red, it's often times after defeating Surge, and in Crystal it's often after defeating Morty).
I often wonder how that will be if/when I revisit Sinnoh. I want to, I really want to. But I need to find a working Platinum first - one that doesn't get corrupted every five restarts or so.