I recently switched my server at home from a PC running Linux to a Mac Mini. Should have done that way earlier. The OSX UI is so much more convenient than a everything that Windows and Linux have to offer and getting the server processes running was dead easy (MAMP, Zimbra as mail/calendar server, Tomcat to run blogs etc). And then of course the great tools in the iLife suite make managing you photo collection, creating DVDs etc. so simple.
In the process of buying the Mac Mini I once took my 1.5 year old daughter with me the to the Mac shop. In the entrance they had an old Apple Lisa standing and it was love at first sight between my daughter and the Lisa. So young and already instinctively falling for the right computer :-)