Sony Profits Conundrum

Alice, over at the Wonderland blog, has an interesting post wondering about the state of Sony's finances when put in contrast with their view on second-hand game sales, and new title prices. From the article: "Yet it turns out that discounting new releases also results in higher sales. MCV continues: 'BVG's The Chronicles of Narnia jumped ten places up the ChartTrack top 40 last week, thanks to a 16 per cent sales increase, following its slashing to £19.99 at most High Street retailers.' My question: what the hell are they complaining about? Why curtail the perfectly reasonable and legal second-hand market if they're making money hand-over-fist with the current situation?"