Programming VS Zip code Scanning

If the radio comes with a zip code scanning feature do I need county Programming?
Zip code Scanners include: SDS100, SDS200, Homepatrol-2, BCD436HP & BCD536HP.
The simple answer is yes.
We highly recommend county programming, this service includes the latest firmware & database updates.
County Programming: includes a specialized list or lists that only have the key public safety channels and sites reducing the clutter of needed channels, enhancing your listening experience.
In this video, we demonstrate the SDS100 scanner with and without county programming,
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