this ones simple  MS points should have some standard value. example:  say i purchase $10 worth of points.  i should get 1000MS points.   see simple.  but MS says 800points = $10 dollars.  less in canada.  Why?  because you say so?  since you want people to use the marketplace, shouldn't you at least have the points worth obvious.  better yet why not just use money?  PSN uses actual dollar amounts.  so why not say i purchase a credit of sat 30 for $30(and that would be $30 regardless of whether i'm in the US or Canada).  or you could just charge my credit card that works too.