It's true but from what I have heard it can be a bit of a ball ache getting the warranty with them, but that's par for the course for grey import so nothing really special about Kogan. They may have a better reputation than most, but with an import you accept it could be a hassle.

That said, I think going with the cheapest and upgrading the SSD is the best choice.

Also wouldn't hold my breath that if/when a local steam deck is released, it will be at all competitively priced.