Insight
Your data leaves when you do.
A saved report produces a file you keep. An association that leaves takes its data with it. Retention, access and erasure are handled deliberately rather than left to a support request.
Run a report and keep the file
A saved report produces a file your team can open. Getting the numbers out is not a separate project.
Leave with your data
An association that ends its subscription takes its data with it.
Keep only what you mean to keep
Retention, access and erasure are set as policy, not left to whoever last touched the record.