I personally think the cost of the connection packages far exceeds the value.
This page shows the connection packages and what functions they add.
They are a little vague on what is provided via connective services with the Tom Tom navigation, other than map updates and live traffic. I suspect this is intentionally confusing. I've read without paying for navigation connected services you will lose some of the map icons that show things like gas stations with prices. I know you also lose the ability to send an address from your phone to your truck's GPS, but that function does not work very well in my truck anyway. Most of the time it does not appear in my truck until hours or even a day later.
I don't think you have to pay for this service for 10 years and I don't even see it listed with a package you can buy. The bottom of
this page says the Safety and Security package is offered as a 10 year trial. Vehicle Performance Package - 5 year trail, and Assistance and Navigation Package - 3 months trial.