Stay with what you love - Statamic entries. With Simple Commerce, all of your products, orders, customers & coupons are Statamic entries. Giving you the flexibility you need to build bespoke e-commerce sites for your clients.
And, when your site grows, it's easy to move your orders & customers into a traditional database.
Out-of-the-box, Simple Commerce ships with support for three of the big payment gateways: Stripe, PayPal and Mollie. Use whichever one you need, or if you need something else: it's easy to build one.
Provide your customers with different shipping options depending on their address.
Simple Commerce has support for discount coupons. You can limit coupons to certain products or to be used a max number of times. All your customer has to do is redeem the discount during checkout.
Sometimes you need to sell different versions of the same product. Like a t-shirt, you might want to sell it in Small, Medium & Large - each with different prices and stock levels. That's where Product Variants come in. Create a single product and configure the variants inside it.
If you need to sell across different countries, you can take advantage of Statamic's multi-site feature in Simple Commerce to have a site per currency. Each site may also have its own set of shipping methods.
Simple Commerce might be simple but it's not basic - there's dozens of handy features to help you build small-medium e-commerce stores.