I agree w/ you guys...
I'm not in favor of a single-pilot flightdeck for the reasons you've all specified. Personally, I love flying w/ someone else, usually makes the job a lot of fun and less stressful. My only concern is that advancements that we're seeing w/ the military, specifically drone aircraft, will eventually find their way to the flightdecks of commercial airlines. Wasn't GPS started by our military...now we're using GPS. The military gave us the internet (Sorry Al), now we're using the internet.
It's just a hypothetical, but if the military can now launch remotely controlled 24 hr. drone missions in the middle-east, wouldn't it be possible to apply this to commercial aviation? Cost may dictate that this is at least considered/tried in order to allow for much of the American public to continue to afford commercial flying. Again, I'm opposed to the idea, but don't think for a second that there are others who have not given all of this some serious thought.