Crazy pricing for KUF

It has been a week already, but I still haven't pick up a copy of Kingdom Under Fire. Why? The pricing has been pumped up ridiculously high, from MSRP HK$299 to HK$450! Since this game is published by Microsoft the price should be set at standard HK$299. I really hope Microsoft can take a closer look at the retail level as this will hamper the business growth for the Xbox 360.