The 2019 payments landscape has inherent risks for any SaaS applications.
For example, imagine you are a business owner with 500 customers that you bill $100 per month on a recurring basis. Your business runs and plans based on $50,000 per month coming in the door on a regular basis. It took a long time and a lot of work to get to the point where your business generates that amount of reliable predictable income. You pay salaries, rent, handle plan development, and manage marketing campaigns ALL around that recurring revenue.