Think of the best marketplaces that you’ve used – Etsy, Airbnb, Uber, even home-grown ones such as the iconic. When you use them as a customer or a merchant, do you have a sense of the technology or platform that drives them? Do you care about whether it was being run on a software-as-a-service, or on individual servers, or a platform-as-a-service? What makes these marketplaces great is the seamless feature suite and the ability for them to rapidly add-on features.