Playing through Dragon Quest 3, even knowing about the differences in towns between night and day, it's Assaram where the potential is really shown. Sure, you can find different dialogue and closed shops in the earlier towns, and even a unique item to steal from a shop, but it is Assaram where the entire town changes. There's a night life to the town. A shop opens up that was closed during the day. A building empty in the day becomes filled with dancers and patrons. And there is a young woman in the middle of the town who can teach you a thing or two about following people you don't know into buildings in the middle of the night. Unless the character in front of your party is a woman, then she just brushes you off.
Finding these little details even now bring such an enjoyable touch to a game I've played more times than I can remember.