As we know, when Ash releases a Pokemon they usually never appear again. However when Ash Oak's his Pokemon, they're all guaranteed future appearances at the end of each arc and most of them get to come back for a major battle at some point or another.
Primeape could have been another Kingler/Muk/Tauros/Snorlax type Pokemon, another one of those Kanto reserves sent to Oak's. Therefore we could have seen Primeape come back every 200 eps or so. But since Ash released Primeape, we never see it again. Just think of how amazing it would be to see Primeape be like Muk or Heracross, and suddenly come back for a battle. What a damn shame.
Pidgeot. What should have happened is after Ash returned from Orange, Ash would find out that most of those other Pidgeotto also evolved to Pidgeot, hence them being able to take care of themselves. Therefore Pidgeot could have then went to Oak's lab, and we could have seen it in battle again. But again, released Pokemon are doomed never to be seen again. Oh well, Swellow was Ash's best bird anyway.
Butterfree and Lapras. These are the only two releases I didn't mind, as Lapras was always intended to be returned to its family, and Butterfree had to start a family. At least we did see Lapras re-appear in a late Johto episode, one of the only released Pokemon to get a follow-up.
Gliscor. This one still has a chance to be redeemed, as it can still be part of the Paul fight in the league. We'll see in roughly a few weeks if Gliscor will go the way of the above Pokemon or become the next Charizard/Squirtle.
Also, why do people consider Larvitar Ash's Pokemon? Ash never captured it. He never captured Haunter either. Those two were never part of Ash's roster, it makes it seem like people think Ash released more Pokemon than he did. By this logic Jigglypuff was Ash's Pokemon because it tagged around just like Haunter did, or that Hippopotas from DP.
Its a shame those 5 Pokemon will never appear again. Hopefully there is still hope for Gliscor.
Primeape could have been another Kingler/Muk/Tauros/Snorlax type Pokemon, another one of those Kanto reserves sent to Oak's. Therefore we could have seen Primeape come back every 200 eps or so. But since Ash released Primeape, we never see it again. Just think of how amazing it would be to see Primeape be like Muk or Heracross, and suddenly come back for a battle. What a damn shame.
Pidgeot. What should have happened is after Ash returned from Orange, Ash would find out that most of those other Pidgeotto also evolved to Pidgeot, hence them being able to take care of themselves. Therefore Pidgeot could have then went to Oak's lab, and we could have seen it in battle again. But again, released Pokemon are doomed never to be seen again. Oh well, Swellow was Ash's best bird anyway.
Butterfree and Lapras. These are the only two releases I didn't mind, as Lapras was always intended to be returned to its family, and Butterfree had to start a family. At least we did see Lapras re-appear in a late Johto episode, one of the only released Pokemon to get a follow-up.
Gliscor. This one still has a chance to be redeemed, as it can still be part of the Paul fight in the league. We'll see in roughly a few weeks if Gliscor will go the way of the above Pokemon or become the next Charizard/Squirtle.
Also, why do people consider Larvitar Ash's Pokemon? Ash never captured it. He never captured Haunter either. Those two were never part of Ash's roster, it makes it seem like people think Ash released more Pokemon than he did. By this logic Jigglypuff was Ash's Pokemon because it tagged around just like Haunter did, or that Hippopotas from DP.
Its a shame those 5 Pokemon will never appear again. Hopefully there is still hope for Gliscor.