Thanks, so, some people should start building open-source gaphic cards or wifi chips? Well, ok, I understand this is not so easy with today's tools and processe

Thanks, so, some people should start building open-source gaphic cards or wifi chips? Well, ok, I understand this is not so easy with today's tools and processes, but maybe one day in the future. What about less complex devices, like simpler PCB boards? I saw tindie.com and a number of people having projects at kickstarter.com - what/how do these projects into sustainable income? Is it services? Is it on-demand production? Or, Adafruit is maybe interesting to look at, since they offer the community/shop driven approach? Thanks a lot!