Why are the HP Prime and HP-35s so unpopular?

[Dave Britten]

(01-22-2021 02:21 PM)Eddie W. Shore Wrote:  The CAS is a separate mode from numeric mode, and any integration between two is at best rough.

Oh yeah, this always bugged me. The TI-92/89, Nspire, Casio Classpad, HP 28/48/49/50, etc. have no such artificial division between numeric and CAS operation. The fact that the Prime separates these modes and even gives them some differing syntax and variable name conventions is baffling.