Add that Evernote can be made to recognize text in images -- so if you snap a photo of a receipt, or a business card, or a page of a book with a passage you'd like to reference later, you can search for text in those images, with fair success, ever if you never got around to tagging, labeling, and sorting such images.
In other words, you'll end up using Evernote for purposes beyond the specific one you now have in mind.