I do fresh installs fairly often. On my next install, I had to call tech support and do the whole process over again.

Because I plan on doing a new install soon, I chatted online with support last night and after an hour + of scripted and repetitious responses from the technician, I was informed that the issue stems from the CS3 being a volume license and I should contact the volume license support. I called them today and I was summarily told they could not help me and transferred me to the regular (for lack of a better term) support line for which I spent an hour on hold waiting for a rep and I finally had to hang up. I don't have that kind of time to waste, especially at work.
This is ridiculous. I do not want to waste any more time on the phone or chatting with reps who can only pick out keywords and read from a script. If the volume license was an issue with the upgrade, why wasn’t I informed when I called support with the original problem? I don't feel like I am asking for much here, I just want to be able to uninstall and re-install as needed without jumping through hoops.
I feel a scathing article coming on about the poor support. It's painful to call the support just to do the workaround process. Even though I know what has to be done exactly, they ask me 500 questions, most of which have no relevance, until I finally stop them and tell them what to do. They have no one with a brain, only script readers.