"Actually it is very hard for good games to stand out on XBLA if they don't get a lot of buzz at expos like E3..."
Let me amend that. I mean the big games with big brands. Whether they are any good doesn't matter that much, but that applies to any system. Saints Row 2 got a lot of praise for being as good as the PS2 GTAs, but it only sold a fraction as well as them.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs