If I update to Mavericks I would lose some of necessary applications that aren't compatible with OS 10.9, and I'd probably have to buy a new printer since Canon tells me my driver probably won't work with OS 10.9.
However, I think I've found a way to install XQuartz on OS 10.8.5 Mountain Lion, and maybe other versions of OS 10.8 as well.
First, I downloaded a shareware extractor app called PACIFIST for Mac (Google it). It easily unpacked the XQuartz installer into a folder containing the XQuartz application and several other items.
I put the XQuartz app in the Utilities folder in Applications and the 2 Launch files in their respective folders in the Library.
However, there are 2 other folders labeled "opt" and "private" that I don't recognize and can't figure out where they go.
If someone knows where to put these folders, this could be a simple solution to everyone's problem installing Xquartz on OS 10.8.
Thanks!