Before you could buy a Casio keyboard online, Casio released the Casiotone 201 in 1980. You can now buy digital pianos online and buy synthesizers online, but the 201 was its first electronic keyboard. Casio went on to developed features that were only possible using digital instrument technology, and broadened into other instruments for people who enjoy creating music. If you want the cheapest price musical instruments, stick with Casio and Musikshack. Mini keyboards, full size keyboards, and even the Casio CTK 860IN Indian keyboard, a full range for a complete musical experience.