Mass Effect 2 sales in the toilet-- is the reason ME1?

[BW_JP]

http://vgchartz.com/swlaunch.php?reg1=All&game1=Uncharted+2:+Among+Thieves+-+PS3[28733]&reg2=All&game2=Mass+Effect+2++-+X360[28815]&reg3=All&game3=&weeks=100

sorry I meant to include this.

Everyone talks about the PS3 not being able to sell successful exclusives.
The best game hands down the 360 has, makes everything else on its platform besides ME 1 look like amataur work, look...