The repository path option is not very visible to users who pretty much use VS for NuGet related operations.
One of the FAQs noticed in Stack overflow is "how do i install packages in a different location from packages folder".
Example :
http://stackoverflow.com/questions/4092759/is-it-possible-to-change-the-location-of-packages-for-nuget
It would be good to expose this option in the "Package Manager settings" dialog in the VS UI too.
