Some people think that managing small projects is easier than managing big projects. They are right, unless the economies of scale require you to manage a number of those small projects at the same time. In that case, managing small projects is a lot harder than managing a big project!
Dedicated servers vs. shared servers
Many web sites are too small to run on their own dedicated servers. I know, I've built a lot of those sites. They usually run on shared servers (together with other web applications for different customers). As many system administrators know, management of a shared server is a lot more work than management of a dedicated server. On a shared server, the applications are fighting for the same resources (memory, drive space, database connections). And we must try to make sure that, when something goes wrong in one application, it doesn't bring down all the others too. Unfortunately, this does happen occasionally. One time it might be because of a Denial-of-Service attack against one particular site, another time it's simply because I screwed up again with one of my infamous infinite error loops. Customers often complain when problems with another site causes a failure on theirs. We then kindly suggest that they open up their purse and get themselves a dedicated server. Or, as a bus driver might say, "If you can afford yourself a taxi, sir, then why take a bus?"
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