Horrible reasoning. Liberty City Stories sold over 5 million copies on PSP, and Vice City Stories sold over 3 million.
Did you ever stop to think that maybe, just maybe, the PSP audience doesn't care about a GTA game ported from a system with vastly inferior technology? It'd be like if they ported a decent Wii game to the HD consoles, no one with the HD consoles would touch it.
Currently playing: Uncharted: Drake's Fortune, NBA2k11, Metal Gear Solid, Picross 3d