Obvisouly you missed some points.
Firstly, some people might need to upgrade to Lion. If 3.1.3 does not work for them then they need to use 4.0 and if this doesn't work either, hm...they can't?
Secondly, it's not just a matter of trying the eval version but installing Lion, installing Fusion, backing up my VMs I want to check and if if does not work downgrading my entire mac back to SL and 3.1.3 not mentioning the risks of broken backups and so on.
Thirdly, I have around 20 productive VMs running Win XP, Win7, Win Server 2008 each something between 50 and 150GB large. So to see if it works well I had to check all of them (at least the different OS versions), i.e making backups of them and in worst case restoring them.
Fourthly, I might not see immediately if there are problems. So if it turns out after some weeks there are serious problems and I need to roll back I lose changes I did on my VMs in between and have to repeat them after rolling back.
So the worst is not a "little loss of time" but a couple days or even more.
I was just thinking what our customers would say if I told them "the worst it has to be is a little loss of time test driving a new release and that just shouldn't be a big deal!" or if Apple or MS released patches and told me "the worst it has to be is a little loss of time test driving a new release and that just shouldn't be a big deal!". :smileyshocked:
All of our customers demand 100% backward compatibilty (and safe migration paths for new versions) and they pay really a lot of money for that. We have a couple hundred employess working with VMs, mostly on ESX but also on notebooks and desktops. So also we pay a lot of money and the last thing we want to hear is it's maybe a little loss of time or just give it a try. That's everything, but not professional.