When I lived in Houston, TX there was a guy, Sandy, who ran a supermarket, Sandy's, out on the west side of town. His lease space was pretty big and to help fill it up he went to auctions and bought antique furniture. Lots of tables and chairs (for the dining area in the store) but other stuff too. Whatever caught his fancy and what ever was a good price.
And he put a price tag on the furniture. And that price tag was usually double the price of what he paid. And he sold a ton of it. And he liked antiques. And he had loads of energy. And his wife helped him in the business so he had time to take off every now and then and go to auctions.
Then he sold the business . . . but that's a different story.