of course you have to remember that a $100 000 to several million dollars for a site is a rare commodity. The sites themselves are very complex beasts, sometimes running across multiple servers, and backs by investors with more money than brains. (scape and boo.com as great examples).
For the average Joe Shmuk like myself, $50 for a quickie graphic here and there to $1000-4000 for a site is pretty average, with some odd little jobs thrown in for a couple-o-hundred. I do a lot of ISP work for hosters as well as my own business and make sites for companies so their budgets are a little healthier than personal sites and what not.
And yeah, freelance does pay better than in-house, but you spend a lot more time hunting work than doing it sometimes. Things are pretty sweet at the moment with regular work coming my way, but there's been some lean times in there believe me.
Greg Moore