This is actually an electronic training device for schools to buy . Schools and colleges teaching microprocessor programming and other such electronic trades would find this device very valuable.
I imagine this device is primarily designed to allow students to design, build, and write a program for a small computer similar to what would be installed in a typical modern washing machine. This unit looks like it would interface with the student's project in order to provide the simulation of an actual machine. Granted, it would be fun to hook up an electronic timer I built to a real machine and watch it work, I don't imagine my local community college would be up for buying 30-50 washing machines, and then trying to find a place to store them after the project is done.
I imagine the device would also be useful if you needed to troubleshoot an electronic control board you are attempting to repair...or if you just want to learn how the little "black boxes" inside your machine actually work!