I've bought from known, reputable dealers in Japan and they are marvellous, including little trinkets in the package chiefly origami, chopsticks, placemats, flavoured KitKats and extremely polite, well-written (not Chinglish!) notes of appreciation. OK, all beside the point, but just to mention. How much do you know your RBs, and how adept at you at assessing risk of what is listed on eBay? There are indifferent, careless dealers in Japan too, and these can often be zeroed-in with sloppy, poor quality descriptive photographs, failure to note faults or servicing, incomprehensible Chinglish and even more mangled replies to Buyer emails.