I hear what you're saying. In light of this, I encourage you to submit feedback through the Gear icon in your account. Feedback left here is sent to our product developers to be taken into consideration for future updates to QuickBooks Online.
In the meantime, updating the costs of the products and services will ensure the amounts are correct. You can also take a look at our partner apps through the Apps tab in your account to see if there's a product/service management system that meets your needs. Simply use the search bar and keywords to find what's available.
