Comment by gobins

Most companies want to see outcomes quickly. They will always go for tried and tested solutions. Why would they risk building something on their own? There will be a threshold where companies are too small and the software is too expensive to buy, so they will go for something small that they build themselves. At scale, it will get harder and harder to maintain the solution themselves and they'd rather spend time focussing on their core business than to maintaining their in-house software.