For small businesses looking to add an ecommerce store to their WordPress website, I would recommend Shopify due to it being affordable, user-friendly and offers a variety of different tools that help with payment processing, analytics and marketing.

5 More Shopify Benefits:
- Great option for users with limited experience with website building. Shopify helps with setting up an online store, as well as managing it.
- It’s a very affordable ecommerce option with various pricing plans available.
- Shopify offers marketing resources and tools to help users promote their online store.
- Detailed analytical data is provided to users about their online store.
- SEO friendly, which helps users with having their online ecommerce store show up more often in search results.