This is what I love about Valve. They see the cookie-cutter ad industry, and instead of trying to manage with what's offered, they just say "Screw it, your ideas suck, we're going to do it ourselves."
While this line of thinking may not be profitable to ad agencies, I don't exactly think they're struggling, what with AAA shooters gumming up the release schedule. After watching the "Meet the Team" videos over and over, and hearing that if anybody would be making a Half Life movie, it would be Valve, I am more than excited to see what their department comes up with for even a short TV ad.
Valve, already on the upswing from PC-console games such as The Orange Box and Left 4 Dead, seems to be the company to watch for the next several years. What with their almost mad-scientist level of brilliance in the creation of Steam, to their capitalizing on opportunities like a sequel to Portal, I can't wait to see what they'll do next.