I am confused as to what defines a "server" distribution against a normal, desktop distribution. What I mean is that if you wanted a corporate server, you might be able to pick just about any linux distro and go, however for some reasons to which I appear to be oblivious to, you might want to roll with
SUSE Enterprise, or RED HAT Enterprise. Why would someone want to choose a specific server distribution? Is it because of the support offered by the companies behind them? Is it that these companies often include proprietary tools in their distros, not normally found in others, to give them an edge? Is it something else?
Please help me clarify things in my mind. Thank you in advance.