Your earliest customers are the ones most likely to leave you next.
I know. You think I've got that backwards. These people were there when nobody else believed in the product. They signed up when it had three features, and on a good day two of them even worked. They put you through a vendor review when no procurement team on Earth had ever heard your company's name. They carried you.
And you've been carrying them right back. For three years. On a grandfathered plan that hasn't moved while every new customer pays four times what they do.
You call it loyalty. Your customers call it a rate plan they barely remember signing up for.



