Wix started out a long time ago as a very affordable website builder and has a huge number of satisfied clients. They recently went full speed into the ecommerce world and have been well-received because of their affordable prices and great flexibility.
For $16.50 you get your standard ecommerce needs met. You can upgrade your store with a well-stocked app-store.
Over 500 templates should be enough and a forever free plan lets you customize your website as you'd please (but not sell anything yet).
Wix is a big favorite for small businesses, so if you don't see your store growing past 100 products go for it.