IPv6 is not an upgrade. It's a new setup. To see what? The 3 sites currently running on IPv6? Ergo the objections.
All of your comments suggest that you have way too much experience with IPv6, so you have become fond of it, although it's useless shit in it's present form. It happens. Most people just want their computers connected to the net. Yeah, I know - that common sense thing. Apologies from the commoners, your highness! ;-)