Hi. I'm rookie here, but a long time rider in informatics, so maybe I can say some words: I was using Widows ME until 2011 in my school! Seriously! The reason was very simple - the poor hardware. Some old used machines from some countries. In the same room there were different machines with Windows ME, Windows 2000, Windows XP and Windows 7. True dreamland for teaching! :-) So generally speaking Windows ME was doing his job very nice, but today this is past - thanks a Good!
I'm working now with licensed Server 2008 and Multipoint server 2011, but I'm fun of the old historical stuffs...you should see (and hear) students reactions when I'm showing them the first Windows!