Too Long; Didn't Read
Commercial Open-Source Software is the main industry driver of software development in the past decade. The Open Core model has proven to be the most frequent business model used by highly successful open-source companies, that have managed to grow their business to the 100+ million dollar levels. The most important task of the open core business model is to find the right balance between open core and the crust, while still providing enough incremental value that will justify their investment. COSS companies have built their business model in a way that allows them to capture part of the value that is delivered by their open source core product.