Mikkel, you bring up a very good point.
Perhaps another key factor would be Management
if you where to buy/sell the website+business along with it. Perhaps with a small business it might not be included and easy to replace, but when it's big enough to where "if it ainít broken, donít fix it" then talent is definitely worth a lot. Finding the right available key people in this industry with the "Know How" and "Know Who" isn't easy and it doesnít come cheep either.