It's not only personal projects. I am in a similar stage where I feel kinda the same for a SaaS (Cloud Camping) where I am the sole developer. I have been working on this "MVP" for over 9 months now, we have our first customers (fortunately), but I underestimated the surface area of the domain (PMS - property management system) which seems like a never ending story. If you decide to create a PMS, customers are used to all the features that come with such a software: Third-Party Integrations for Booking Engines, Email Templates, Newsletter, i18n support for DB entities, hardware integrations (Electricity, Barriers, ...). It's difficult to draw a line for MVP or finished product.
