OK. So "those people" are 80% of your customer base, and you're ready to translate that directly into what works in a corporate environment.
Um, I think you wandered away from the conversational thread. I said that large companies would have to decide on their own, on a case by case basis, if it was worth it to them and what if any benefits they would see. Here is a quote of what I said about small to medium businesses:
“On the other hand, small to medium businesses would be well advised to make the switch. Most don’t have a Windows domain or all the headaches and full time support staff that requires.”
They do not have Windows domains. They do not want Windows domains. Most cannot afford Windows domains.
Oh, forgot to mention: Windows Server 2003R2 SBS is a SICK joke for those poor people it gets played on. (Haven’t had time to eval Server 08, so I haven’t commented on it.)