For some reason, it only just occurred to me that Kobo should sell refurbished e-readers. In theory, here they are:
https://us.kobobooks.com/collections...ished-ereaders
But, surprise, surprise, not only are their no refurbished Sages available, there are no refurbished e-readers of ANY kind available. Of course, I haven't been following that page, so I don't know if they periodically become available when someone returns something for repair. But, anyone in the 8-inch e-reader market has NO Kobo choice at all (and darn near none from anyone else).
I hate to say it, but I might have to buy an Apple iPad Mini to use as an e-reader when the new OLED version supposedly comes out in September-ish/October-ish. And, that's crazy-talk.