I picked up Halo: ODST on sale for 20 bucks at Futureshop  (in Canada) today. If you haven't bought it yet, 20 seems to be a good and fair price for it, well unless you buy a friends used copy, but considering a lot of places are still trying to justify a 50 or 60 price tag, 20 sounds just right. 

I did the same thing :) but was too far from a FutureShop so I brought the flyer to WalMart and forced them to price match.

Ah yes the price match, tiss a very nice thing