I have nothing to complain about. I bought an Xbox360 and have enjoyed some excellent releases, such as Bioshock, The Orange Box, Gears of War, The Elder Scrolls IV: Oblivion, Mass Effect, The Darkness and Halo 3. I am also looking forward to Grand Theft Auto IV, Mass Effect 2, Half-Life 2: Episode Three and Gears of War 2, alongside those which I have either forgotten or have yet to be announced. It does not bother me that many of these games are similar to older releases, since I also enjoyed those older releases and I am quite happy to have more of the same with better graphics.
Imagine if movie critics insisted that movies be better each and every year, compared to the previous year. It is just silly, and even sillier to let that expectation ruin your enjoyment of quality new releases. In any list of the greatest movies of all time, it is expected than many will be very old, and that many similar movies with flashier special effects would have been released since. However, these newer movies can still be fun and worthwhile experiences, quite irrespective of whether something better came before.