I've just run a few searches on both new and used Nutribullets. There is one seller who has sold many identical 'used' ones that say 'used only a few times'. The photos are identical. As are the prices. I don't see how it would be possible for one person to be coming across so many 'used' items that look so new. Is this possibly an imitation item? Is there something else going on that means I need to be cautious? TIA for any kind comments