Deployment of a 2008 R2 template, without sysprep?

Hey guys,

I know it has always been common practice to run sysprep to create a unique SID for new servers.  I recently read an article by Mark Russonivich of Microsoft that said this is really not required, unless there is an application or something specific that has issues with this.  He mentions WSUS might have issues, but can anyone else list known issues with skipping the sysprep step?

http://blogs.technet.com/b/markrussinovich/archive/2009/11/03/3291024.aspx

Thanks,

Dan