Must be nice to have a choice to upgrade. I don't, not where I live. Unable to with old phone lines. That still doesn't stop me from looking through the gallery. It does limit how many I can see. I'm always wondering what I have missed. Thumbnails help, I can get the gist of the render, lighting, postwork. Quality of the thumb is not as important as what it portrays. I don't waist my time on renders without thumbs, unless I recognize the artist's name.