Always found it a bit amazing when a way was discovered to fake three voice sound on the CoCo's stock hardware. The add on sound cards were pretty neat but most

Always found it a bit amazing when a way was discovered to fake three voice sound on the CoCo's stock hardware. The add on sound cards were pretty neat but most cost almost as much as the CoCo itself. Since much of that cost likely came from making it into a ROM pack and a boxed SKU, I am a bit surprised that Tandy didn't include one of them on the motherboard of the CoCo 3, but they also passed on the chance to add sprites to the CoCo 3, so the twin principles of the CoCo being relatively low cost and the 6809 (somewhat of an extravagance for 8-bit computing) doing all the work seems to have kept those extra functions from being added.