As a relative newbie to the community here I've gotta say tonyk's communication style could use some help. In this thread I find the insult uncalled for. However, I too assumed eagleeye was talking about hosting which is typical when discussing "servers". But eageeye is right, he did NOT mention hosting, only the requirements for server hardware.
xeroc's note that a search would have lead to better threads where this topic is already discussed may be true, but I know from my own experience keyword selection is extremely important in getting good results and often it's very difficult to hit the right ones. Eagleeye mentioned one phrase but it often takes several attempts at searching to get it right, and sometimes after a half dozen attempts with poor results you just figure it's easier to post a new topic.
Although it's true a single source for anything the delegates rely on is a form of centralization. in the case of computers the risk is minimal. I certainly would be giving any common systems that became popular to delegates some close scrutiny tho, should some keyloggers or other spy hardware be built in. Custom mobos or odd components would be suspicious.