It is often hard to sell niche items in a traditional store. For example, go to your local bookstore and look at the section for comic books. How many people are wandering through it? Is it totally empty? After you do that, compare it to the section for popular fiction. There are probably a lot more people there than there are in the section for comic books. If you were to start trying to sell something to make money, would you decide that you want to sell popular fiction or that you want to sell comic books? It is an easy choice.
However, you may know that comic books actually sell quite well on the whole. There is an entire market of people who want to get the latest books. There are also collectors who want to get older comic books, and who may be able to part with $100 or more to get them. How many normal books would you have to sell to get to $100? As you can see, there are people who want these, and there is money to be made, even though the aisle at the bookstore is empty. What do you do?
The best option is to use an ecommerce website builder and start an online store for the items that you have to sell. Niche items sell better on the Internet than in stores because it opens up your business to so many other people who would never have found a physical store that you were trying to run. You only need one person to buy the item to make it worth it. Even if there is only one person in the world who is looking for the comic book that you have, the odds are far better that you can find him online than that he will search out your store and come for a visit.
Niche items do not have as many potential buyers, so you need to do everything in your power to get your product in front of as many potential buyers as you can, increasing the odds that you will find the right one. If you do this, it does not matter if you have items that no one in town will ever want to buy. You can sell them to other towns, cities, and even countries, making money despite the fact that there are no local buyers.