I don't know if this is some kind of error or not, because Americans have Max Payne 3 on sale for $39.95, but we have it for $19.95. If you pay via Microsoft Points and buy a 4000 point card of eBay for roughly ~$40 (Pricing fluctuates), then this becomes only $12.80.
In comparison to America, we are being ripped off for LA Noire (19.95 vs 39.95) and Red Dead Redemption ($19.95 to $29.95). But Midnight Club Los Angeles both countries have it for $9.95 so that might be worth something.
drat I just paid 3000 points for it the other day…