I know how you feel but you need to give them a chance regarding the lack of content atm. MS have their hands full still with so much revolving around the console, and thats just the start. With game's being constantly pushed back release date wise, we're unlikey to see that many demo's too.
What's annoying me is the lack of trailers atm, its pathetic although theres sod all films out there that are any good anyway. Still, Full Auto demo is coming to the marketplace on the 25th, so thats something to look forward to, unless you've got the latest OXM mag.