Oh, I came looking for DS Lite info, and found lots, and a raffle..
I hadn't heard of this site before.. but DealWoot, did make me think of Dealw00t, which might not give the most serious impression. So in my opinion GameByGame sounds a bit classier, and probably is easier to remember to, given it features the word "game" twice. Not to mention how many others have confused it/or assumed others confused it with DealExtreme.
The only thing that I find a bit confusing on GameByGame's webby is their FAQ, and its lack of info regarding international shipping info. It's always a good thing to state international shipping is available in a FAQ. Especially since for the most part the FAQ otherwise seems to assume anyone reading is American, ie first FAQ question being "Q: Is your shipping really FREE?"
When one tests adding an item to the cart, and then clicks cart and selects country to ship, say Sweden, one can see there are two shipping options available, one without and one with tracking. So maybe a rewrite of FAQ would be in order. And perhaps also some chart showing average costs for international shipping, based on weight or some such. Then again, international delivery rates might make an international order a bit pricey, even if the price for the item itself was a good one.