I would recommend buying all new and all the same or similar if you intend to have more than one listing. Online STR owners groups recommend branding by painting, decorating, furnishing all of your listings the same. It builds a “brand” so to speak. If you operate STRs in different cities you can get repeat guests visiting your different listings and knowing what to expect.
I only have one listing, it’s a mid century house so I wanted to use antiques but I quickly found out that unless it’s new, you have a receipt, and it can be replaced with the same thing, Airbnb doesn’t cover antiques- at least they didn’t use to. My beds, sofa, chairs are all new but my tables, dressers, lamps are antique.
