Instead, it’s just… a tape recorder connected, in a somewhat convoluted way, to spotify.
Wouldn't surprise me if there'd be a viable market for such devices brandnew. Not just for nostalgic greybeards, also younger folks unfamiliar with yesteryear's tech & curious about it.
Poor fidelity of cassette tape medium was the least of the issues. The biggest problem was the built in mic's inability to handle the overall volume.
Lots of experimentation with placement of the recorder (and thus mic) within the rehearsal space would eventually yield results that were no longer useless -- but still pretty, pretty bad. I do not miss cassette.
To be honest I don't really even miss analog -- but this comes to down convenience and flexibility rather than fidelity comparisons.
Said another way: there are no analog DAWs (a redundant and captain-obvious statement, I do realize).