Why didn't sony use the same plan with the vita as they had with the psp?

[Jizz_Beard_thePirate]

Hmm, idk why Sony gave up on the vita tbh... Sure, it wasn't selling that great but that doesn't mean it was too late back then. I mean, the 3ds got countlessly criticized for having the 3d as a gimmick, for its weak power, for its sales being way under the DS, and for people moving towards mobile but that didn't stop Nintendo for giving it their all and making it a success so why didn't sony? Heck, Sony even acts like they dont even know the product or they dont know how to present it. Is its own gaming device? Ps4 accessory? Psnow device? So sad really