Tacit asks why I wouldn't test apps from the Application folder. Good question - why not!? I think it's because I like to keep this folder free of potential digital dross until I'm convinced it's not. My Applications folder already has 96 items in it, 13 of which are subfolders (eg Utilities, Graphics) containing still more apps. I can't remember when I last opened 90% of them. Good grief, I think it's time I went on a culling exercise!
Artie505 suggests that many users store apps other than in the Applications folder and I think this is my point - I would prefer the App Store have some basic preferences and give me the option to specify a different location.
