Yeah, but it pays itself off in a short time since you don't have to 'dump' your OS knowledgebase with every new release like one has to do with MS. I'd certainly like to be able to use the MS-DOS-thru-NT4 knowledge I have to help me admin 2000 Server but Nope. The best part of the open source *nixes is of course the security available under them. Imo NT4 and NT5 are totally compromised. Of course it's speculation on my part because I'd need access to the source codes to prove it but I've done enough cause-and-effect testing on them to determine they're owned and operated by others than the End User.