This depends on the number of products you have.
The Anchor store subscription is currently $499.95/month but has unlimited listings and a 1% lower final value fee than the Feature Store. A feature store is currently only $49.95/month but it is limited to 500 listings.
So if you have less than 500 products to list (not including variations of a product i.e size or colour), you are more suited to the Feature store.
However, if you have more than 500 products but don't want to pay for an Anchor Store, you can decide to only list some of your products. We recommend that you only list your top selling items, that way you don't need to list your full product set and pay for an anchor store.
More information is available on the eBay Seller Center