Even if I don't need it, I'll feel better knowing it's there if I need it.
I only got the basic coverage...but that SHOULD be enough, I think. Just doesn't offer 100 mile towing and a few other things.
Roaming on your cell phone just means they charge you through the nose for calls made outside your 'home' area. You should be able to make calls from just about anywhere, especially along the Interstates, it will just cost you more. You should have plenty on your phone to get you through your trip, though it might be a good idea to keep the phone number for adding minutes on to it with you.