I guess it does depend on how much clutter you aquire. A quick look and in imaging programs alone I have :
PSP7, PSP8, Nikon View, Nikon NC4.4, NX, and Capture Contol, CS2, Rawshooter, Fastone, Iris Space Imaging, Deep Sky Stacker, Registax, Combine ZM and then add Opanda and Image extractor.
And for a couple of days I also had Canon DPP and Canon Zoombrowser for training purposes.
Don