I do. Surplus stores provides sturdy items that is to my likings if I take time to browse and look around, also they can still last long if I take care of them. I save money, I help recycle and also keep some business. It is a win for both parties involved. Though I do this for furniture and clothing items, when it comes to devices and such, I always prefer to buy brand new because I want to make sure it is in its pristine state when I first use them.
This kind of business could be good albeit you may need to sell products at a reasonable cost and the quality of the product should also be good. Make sure that you sell high-quality products that are really high in demand. This is exactly how many popular sites like Ebay and Amazon got popular.