Whether it is high school prom night, a bachelor or bachelorette parties, you can get a limo bus for any special event you can think of. However, how much is a party bus will depend on your needs and the models you will choose. Wondering, what is a party bus? It is a limo party bus service that you can use for various occasions. These buses are like a party club on wheels to take you around town in the Chicagoland area and make stops at your favorite venues and paint the town red.