spend a lot of money
According to recent information, there isn't a "city," but there's a big shopping mall beyond the train tracks.
It's called Nookington's. On the one for gamecube, you need to buy things all the time and have someone from another town shop there. Same with Wild World. However, I don't know about City Folk yet. Hope I helped.
Mall at Barnes Crossing was created in 1990.
The Great Lakes Crossing Outlets mall features over 180 restaurants and stores. Some stores at the Great Lakes Crossing Outlets mall include Bass Pro Shops, Burlington Coat Factory, The Sports Authority, The Children's Place, and Disney Store Outlet.
Plaza Galerías, Guadalajara's biggest mall, located in the crossing of the Vallarta and Rafael Sanzio avenues.
Tropicana City Mall was created in 2009.
Ford City Mall was created in 1965.
Sky City Mall was created in 2006.
Bay City Mall was created in 1991.
Danga City Mall was created in 2008.
Music City Mall was created in 1980.
Capital City Mall was created in 1974.