Where does App Store download files to?
I ran the Updates feature in the App Store on my iMac today, and it reported both a delta (incremental) update to Mountain Liion to 10.8.1, and a full download of the 10.8.1 Combo (4.37GB). After running the delta update, I decided to download the full Combo version, just in case I ever needed to do a full reinstall. When the download finished, it popped up a window to run that installer, but I cancelled it since I didn't need it to run now. However, after quitting the installer, I wanted to add the Combo download to my MacOS X Updates folder on a backup drive, however, I couldn't find the file. Where does the App Store download its files to? I couldn't find a setting in either the App Store application, or the System Preferences to identify its default download location.
iMac, OS X Mountain Lion (10.8.1)