Don't feel bad. I lost count of how many people say Luggage Tags but mean ME tags and say ME tags but mean Luggage Tags.
Just in case someone is searching and this info helps I'll try to spell it out here
Luggage Tags - come in the Magic Band box and are offered to all who book a package, and only those who book a package. It doesn't matter if you are flying or driving. The style of luggage tag included is based on the color of MB selected. These are used to put your name on your bags
Magical Express tags - yellow tags that go on your luggage to indicate to handlers that your bags go to Disney not the luggage carousal, if you arrive between the hours it's offered, 5 AM to 10 PM I think. Anyone who registers their flight with Disney will receive these. They came in an envelope with a letter that confirms you are down to ride ME to the Resort. If memory serves me right the letter also shows your flight info. But don't fret if they don't arrive or are lost. You can provide your luggage claim checks to the ME staff and they will still get your bags for you. And they are not required if you want to retrieve your luggage yourself you can do this. Just leave them off.