Here are some things that can lead to a sub-optimal user experience: 1) User forgets or does not know the administrator password to install into /Applications

Here are some things that can lead to a sub-optimal user experience: 1) User forgets or does not know the administrator password to install into /Applications 2) Loses license key to activate paid application 3) Installs application into ~/Applications instead of /Applications and thus when another user logs in, is unable to launch it 4) Fails to unmount and delete disk image when installation is complete and thus has ~/Downloads (the default download directory) full of them