I like Kayaker72's thoughts. It'd be even better if you could do searches off of it like a specific focal length and a certain aperture with "five star" sharpness, or in case of a body, the ability to have 6400iso with at least a "three star" image quality in a Rebel former factor. That's seems like a lot of work and would have to be revised almost every year as our standards increase and only have five stars to play with.