The Plus/4 was introduced in June 1984 and priced at . It was discontinued in 1985. Commodore's intent with the Plus/4 was not to replace the C64, but to expand the home computer market and sell the Plus/4 to users who were more interested in serious applications than in gaming. By 1984, however, in the USA, most of these customers were beginning to switch to the new, low-cost IBM PC compatibles such as the Leading Edge Model D and Tandy 1000 series. Although, like the Commodore B128, Plus/4 systems remained available from liquidators for years after its discontinuation, the Plus/4 disappeared from Commodore's major markets by 1988.