I own a 3D printer, and have a couple Raspberry Pis and breadboards in a closet somewhere. But there’s no way I’d have the time or inclination to put everything together in a way that is actually worth it over just paying $169 for a flipper. Someone already posted it but this reminded me of the “I don’t get the point of Dropbox when we already have FTP and CVS” comment from 2008.