HR, payroll, time tracking, POS, online ordering, review alerting, online advertising, social media marketing, email marketing, integration services, financial reporting, website, email, rewards management.
And that's for a business that mostly operates offline. It's really easy for these things add up quickly and without you realizing it.
This is why I always object when someone points out that $50/user/mo is a tiny percentage compared to what you're paying for the employee. It's not $50/user/mo, it's typically ($50 * 10-20)/user/mo.