The only drawback is that everybody at my workplace used to cast shadows in my office doorway all day long with their problems. "I can't print, I can't see the network, my mouse is frozen, etc., etc." It got to the point that I couldn't get my own work done. So I had to start playing dumb and pretending I didn't know how to fix their silly problems.
Anyway, the MCSE training was pretty rigorous. Passing those tests are not easy. I doubt that I will re-certify on Windows 2000 as I have the base knowledge to pick up on it on my own.
The NT5 kernal is great but for the future I just don't see businesses hooking into .Net's propriatary network. I first looked to Novell 5.1 running 2000Pro as a replacement for NT4/98. However, after debugging the numerous cross-platform payloads of CodeRed.C from my system I've essentially washed my hands of MS.
What DEC, IBM and Apple were in the mid-80's MS has become now. It's retreating into it's own propriatary network like the previous did. It's successor will be the same to MS as MS was to those it previously vanquished: cheap, stable, easy to run, with the broadest application base -i.e. Linux. It's the same basic formula MS used, just via a different channel now.