Good post. I 100% agree. They should've released the SDK, and released an addon this year (so people don't end up having to pay $60 for the same game with just four new maps). And next year they could release L4D 2 with an upgraded graphics engine, and port it over the PS3 as well this time.
For those of us who don't have audio or know what the heck you're talking about, care to explain in a short paragraph what, exactly, you are complaining about?
One of the largest groups on steam is the L4D boycott group. Approaching 30,000 members. Valve will listen to its fan base, one way or another.
