Thanks man, glad you like it! The sustainability is a good point! Within the US there are around 11k new borns per day and the average age of first time parents is 25.6 years old. Worldwide there are everyday around 370k new borns and the average age for first time parents is even younger (22.8 years old). That in combination with how much money first time parents spend for their new borns can be an interesting market. We are right now working on the next update. If you have any additional thoughts please let us know. Happy holidays!