When your products are not (properly) categorized, your customers can have a hard time finding them. Categorizing products helps your customers to find products and related products on your webshop. Also, categorizing will help search engines such as Google and Bing to index your webshop and its products. So even if you only sell a couple of product (types) and your webshop doesn’t need to categorize them, it’s a best practice to categorize them and pass the data on to the search engines as meta and through the product sitemap. This helps your webshop to acquire more new customers and can even help to get a higher order value.