As persistent inflation and high mortgage rates dent shoppers' ability to spend, second-hand sellers like e-commerce firm eBay Inc EBAY.O and British charity Oxfam say they are anticipating increased sales of used items from vacuum cleaners to clothes. Luxury speaker company Sonos and exercise bike maker Peloton PTON.O are both selling refurbished goods on eBay UK this year, despite the risk it could cannibalise sales of their new products. Nine out of eBay UK's top 10 deals last Black Friday were refurbished items.