I just came back from Church to celebrate easter with my girlfriend. On my way home, i got stuck at the traffic light near Malioboro. I saw a kid selling a map (at night). At first, i thought it was an ordinary map, since nowadays many tourists (domestic and international) came to Jogja (since it's a long weekend). After i saw it throughly, it was not an ordinary map. It's a culinary map
With so many people from outside Jogja (and Indonesia), it's very useful if you have those kind of map, since you will surely need to find a nice place to eat. I don't know who much does it costs, but i think it won't be that expensive. If it listed lots of places, then i guess it's worthed to but one of those.