Place Doom 3 on your wish list and then print out a copy of the wish list and take it to B&M where it is 49.99 and have them price match.
It takes some effort and a trip to the customer service desk to speak to the manager if the person on the floor refuses. Just show the manager the wish list which states "available in store" and argue your point that they don't say that you can't have it for that price in-store. They tried to say to me that the B&M and Target.com are two separate entities, at which I said that if true, why do they say available in store? At that point they relented and made an "exception" to the rules.
I only paid $29.99 plus tax and even avoided the shipping.
Good luck