It's astonishing the difference between a prototype and a production board. In this case the prototype ISP programmer for the ATtiny45 processor board (left) took at least 20 hours to get working. The production board (centre) took about six hours to do - but unlike the prototype, worked within 3 minutes of being assembled.
It was apparently the same even in the olden days. My grandparents used to say that even in the great depression, people didn't want the handmade things as much as things made by machines. I definitely know what they mean.