It's true that there aren't a lot of good rpgs, as we all know they're on the handhelds this gen, but I really don't see how you can complain about the quality of the library as a whole at this point in time. It's still not up there with the PS2 and the SNES, no current gen console is and probably never will be, but there are a lot of amazing games, what games do you own on the system?
My standout favorites would include Eternal Sonata, Valkyria Chronicles, and Mod Nation Racers.
In the middle are games like FF13 that are in my area of interest but flawed. I haven't bought Trinity Universe or Atelier Rorona yet due to mixed reviews but would pick up when they are heavily discounted.
And then there are so many games, such as first person shooters, dark and/or realistic military games, hyper-violent, that I would just never play, and these are the games that generally sell the most and are the highest rated by the biggest gaming websites and periodicals.