I wish more companies would try to serve tiny shops at the same time they serve multi million euro companies. The requirements for the two are very different, as is the support and customer care requirement. Integrating directly with Adyen as a small business is like running a kubernetes cluster on AWS to host your blog, except they'll have even less time for customer support to spend on your tickets when things don't go right.

Platforms like Stripe where anyone can sign up at any time drive up prices because the amount of low-profit companies needs to be offset by the companies making more. Great for small startups but a bad deal for major companies.

Stripe has also been criticised for forcing growing companies into enterprise plans the moment they hit certain growth numbers. That's one way to keep the business profitable, but it's not necessary if you only take on businesses that are already profitable enough dedicate a sales team onto.

Once you hit a certain processing threshold, stripe underwrites you. The benefit is some people get better deals or get to skirt by rules just by being immaterial.

Separately: Once you hit a certain threshold, you get an account rep and can ask for IC+ billing. This is sometimes better than the blended/sticker rate.

And furthermore, once you're really big enough, you can negotiate down Stripe's markup on the interchange. (As with any big enterprise contract).