The term "At Home" is very disingenuous. Spitting in a tube at home and then mailing your DNA to a lab is not At Home. A proper at-home test would be a kit that allows you to decode your DNA at home without a single strand DNA or byte of data landing on a system that does not belong to you.
Why aren’t there companies out there doing this at a higher cost without the privacy implications? Just give the user their data and decoding software that is regularly updated with current information.
Seems like low end machines are about $100,000 so it seems like this would work? I would pay 3-4 times as much if I knew I controlled the results.