Package stores?

Travel Info
I was visiting my father in Atlanta and noticed that all the liquor stores are called "package stores". Why is this? Is it some kind of euphemism? Seems kind of pointless because the windows are loaded with neon beer signs like anywhere else in the country.

Travel Tips

in the state of Ga. you can only take alcohol out of a store if it is in a package. Its a state law. therefore you can only take out the contents in a package. hence the name, package store.
Others

its problemly call a package because u can get everything their
when buy alcohol from there they put it in a brown paper packaging bag to conceal it (georgia law) so that is what coined the phrase 'package store.' fyi... in south carolina they are called red dots!