This looks like a great workshop, but not cheap at all at $100. This is what to expect for you money:
Learn how to make 1-bit chiptunes music without the hassle of computer programming. This is a musical introduction to basic electronic concepts through the use of CMOS digital logic chips. From a hand full of components you will create the world's simplest oscillator and 8 note musical rhythm sequencer. No soldering necessary, you'll take your project home on your very own solder-less breadboard!