Why don't Western developers get handhelds?

[VanceIX]

NiKKoM said:
Its more that publishers don't see anything in it cause we had like: Uncharted, Luigi Mansion 2, Wipeout,alien infestation, tons of lego games as perfectly fine handheld games by Western developers

To be fair, a lot of those were developed by first-party studios of Japanese companies, even if they were developed by a western team (with the exception of maybe the lego games and alien infestation)