Why "upgrading" OS X over "wipe install" is a bad idea?
I don't need to be convinced otherwise but I need to create a detailed list to email faculty about why upgrades are bad. We have a new 10.8 image ready for the new school year but faculty do not want to backup their files and have their computers re-imaged. Instead they want their computers "upgraded" from 10.7 to 10.8. We do not support upgraded computers period but now needing to have backing behind it.
For one I know I will have issues with the local & Active Directory users after an upgrade & the prior system will always have under lying files in place.
As most of the users on this forum are those from enterprise I'm sure most would agree with me so wondering what are your thoughts & what should I be adding to this list?