They defeated the try before you buy excuse for pirating games by offering demos for just about every game they've released so far.
Most of the shitty games with little to no replay value are also not being priced at the $59.99 price point. They're $49 and 39...sometimes less.
Playing games before they're released is a surefire way to get yourself banned from connecting to XBL. If you're going to do what you're doing, at least be somewhat smart about it.
