For every Final Fantasy Tactics or Disgaea 2 port, there's a R-Type Tactics, Holy Invasion of Privacy Badman or Jeanne D'Arc. This is without getting into the psp's vast puzzle library: Practical Quotient 2, Crush, Echochrome, Lumines, Patapon and more. You can complain about lack of original rpgs, but then there's stuff like Gurumin, Cladun, ZHP, and stuff like Parasite Eve 3 and Final Fantasy Type Zero on the way.
Whoever complains about psp lacking original content really hasn't researched their system and sounds like they're bitching just to be bitching. People also forget the two psp GTA's, Loco Roco, Rock Band Unplugged, Downstream Panic, Kingdom Hearts: Birth By Sleep, Half Minute Hero, Pursuit Force.
PSP has a lot of ports and remakes, but it also has a whole slew of original content to the point where it doesn't really matter.