I agree with all of that but...
given that they are in the top 10 sites by traffic volume, their claim to scaleability is pretty good.
Now I personally believe that with a different platform they would be able to achieve significant savings, but their profit margins are good enough that it isn't an issue.
Cheers,
Ben
I have come to believe that idealism without discipline is a quick road to disaster, while discipline without idealism is pointless. -- Aaron Ward (my brother)