Almost perfect Rapidash worth the dust?

Depends what moveset you get. I wouldn't over-invest in a Rapidash but he might be useful for prestiging with the right moves.

Hell no. Only use of rapidash is training

if ember/fireblast ponyta i would keep it for training and not level it. If not evolve it and see with moves you get.

No!.

It's a fire type and there are obviously much better options (Arcanine, Flareon, Charizard). Fire types are usually terrible defenders given the wide availability of Vaporeon, so Rapidash would be an attacker.

Up to you whether you think you would get enjoyment from it (variety, near perfection) knowing that there are better options out there.

There are much better fire type mons e.g, Charizard, Flareon, Arcanine. Not worth it imo.

I've not found Rapidash great as a prestiger - Ninetails higher defence works better for me.

Fuck no you insane?

Do not waste your dust on him, Just save for your collection, I have Rapidash with perfect Iv, But never use him.