I've all ready pre-orderd mine! cant wait :drool:
But to answer your question it depends were you buy it from really, most online websites will sell new items at a slightly cheaper price than what they would do in store, so to save money and the hastle of walking into a shop to get the game, just get it deliverd... all though I'd only pre-order it from some one whos reliable and get their products to you either early or on time and arent late on the delivery.
Then again the downside to pre-ordering online is that theirs all ways the chance that it could arive late as the delivery system is never full proof, so for a bit extra cash, pre-order the product in a game store and make sure your their on its release date to collect it other wise if you dont, they may just sell it on... the other thing about collecting pre-orderd games in store as well is that not only are they 100% guaranteed, but some times you might receive the odd promotional gift with your game like extra content, a free t-shirt etc. you dont get that with online purchases I find unless its something thats allready included with the product.
As for me, I already work in an electronics store so I'll be collecting it early lol :celebration: