its true that xbox 360 games are more easy to develop

those are 3rd party games u mean?

for 1st party games, they are indeed utilizing the storage advantage in bluray disc,

for 3rd party developers, they have to ensure the contents are the same for all platforms, otherwise ppl will say they are biased towards one platform only, plus there is also no reason for them to pour in extra contents for PS3 version, unless Sony paid them to do so.

pricing wise, Xbox 360 and PS3 multiplatform games are almost the same, of course if say pirated game then nothing to say lah

also take note that multiplayer on xbox needs $$, PSN is FOC.