If you think that website desiging is easy & inexpensive you are absolutely wrong. The best example comes from BBC website which costed already around 150 millions pounds! It is hard to believe that this website is overbudget only about 30 millions. This huge amount of money was just gone, not because the plan was wrong, but there were so many people working on this project and the website designers fluctuaction was so often that the project managers lost their controll on budget. But… the website design of the particular parts of the website looks really good. The functionality is also great but in my particular opinion the website design company should be paid maximum ¼ the money proposed spent by BBC.
See also: website design London