I want to show a dozen of my digital art pieces in a physical portfolio. These works are in large image files - 8000x10000 pixels, for example. They can be printed on 11x17 paper and come out looking fine, showing plenty of fine-scale detail.
But for a portfolio I'll carry around to show galleries, potential clients and who knows where, would it be inconvenient to use that size, or is it more important that it shows all the fine details in the art? I imagine big colorful images will impress viewers more, but then bulkiness would have the opposite effect.