I'm building my PiPlay Advance. A Pi Zero game console with all off the shelf components (plus our PCB) and only a few solder points.

Our BOM is about $35 - $45 right now before bulk discounts.

http://blog.sheasilverman.com/wp-content/uploads/2016/10/778...

https://docs.google.com/forms/d/e/1FAIpQLSerQdiZrYwMojO9M8Hi...