I know you said there were various reasons, and I wanted to point out that in my experience the pain of arguing/battling against those reasons is lesser than the pain of continually breaking production.
in reply to Re^2: Windows/Solaris Difference
in thread Windows/Solaris Difference
Whoever manages the risk in your company could be a good person to get in the loop if you continue to get refusals of either an account or a brand new box for testing.
I also suggested free ways of achieving an in between result using VMWare that requires only installation approval--if that is an issue I refer to the previous paragraph.
There you go ;)