You don't really 'get' playing Gen 1 or 2 unless you've played them alongside Stadium 1 and 2. These games have lots of fun QoL features, and of course there's playing on the big screen with fast forward, trading without having two Game Boys, bringing your well trained bros into 3D and taking pictures of them then using them to win tournaments, etc. Stadium 1 and 2 are vital to the Gen 1 and 2 experience, if you've just played Gen 1 and 2 on emulator or Virtual Console, you're missing a key component to what made them good.