That would bring ham radio back to the top of the food chain in terms of digital radios.
I also think a wider bandwidth would be interesting if impractical. Something like recording everything happening on the 2 meter band would be impractical but very cool. I think
I would definitely buy one.
While $100 a unit isn't bad, the $500 buy in is a tough pill to swallow for a solo hobbyist. This doesn't look super fun to hand assemble either though.
Thanks to the availability of kits (mostly Heathkit), I got my start in Ham radio (and computing). Learned a lot - and kit prices helped me to afford that.
Similar project for HF (kHz to ~30MHz) is the radioberry project, a kind of spin-off from the hermes sdr.
