Sequels Turning Off Game Consumers
Next Generation reports that the constant trend towards game sequels is lowering interest among game consumers. From the article: "A weak consumer environment leaves us questioning whether sales will rebound sufficiently to drive growth for the full year. In particular, consumers appear to be indifferent to the proliferation of sequels, indicating a slow start to holiday sales and risk of continuing weakness." That, right there, is the problem with the PSP's library at the moment.
There are 18 games in the Xbox 360 launch catalogue. 14 of them are sequels. (11 of them are sports/racing games!)
qntm.org